Answer:
90
Step-by-step explanation:
add them, then divide the answer by 5, because there are 5 numbers
(25pts) Which product is represented by these algebra tiles?
Answer:
(2x+1)(x+1)
Step-by-step explanation:
got it right on my quiz and also there is 2 reds= 2x on the bottom and 1 red=x and the yellow is the +1
The product represented by these algebra tiles is (2x+1) (x+1).
How to calculate the product represented by these algebra tiles?Suppose the blue tiles are x.
Suppose the red tiles are 1.
Therefore,
length = 2 blue tiles + 1 red tile
= 2x+1
Breadth = 1 blue tile + 1 red tile
= x+1
Therefore, product represented by these algebra tiles is (2x+1) (x+1).
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You will begin with a relatively standard calculation Consider a concave spherical mirror with a radius of curvature equal to 60.0 centimeters. An object 6 00 centimeters tall is placed along the axis of the mirror, 45.0 centimeters from the mirror. You are to find the location and height of the image. Part G What is the magnification n?. Part J What is the value of s' obtained from this new equation? Express your answer in terms of s.
The magnification n can be found by using the formula n = -s'/s, where s' is the image distance and s is the object distance. The value of s' obtained from this new equation can be found by rearranging the formula to s' = -ns.
To find the magnification n, we can use the formula n = -s'/s, where s' is the image distance and s is the object distance. In this case, the object is placed 45.0 centimeters from the mirror, so s = 45.0 cm. The magnification can be found by calculating the ratio of the image distance to the object distance. By rearranging the formula, we get n = -s'/s.
To find the value of s' obtained from this new equation, we can rearrange the formula n = -s'/s to solve for s'. This gives us s' = -ns. By substituting the value of n calculated earlier, we can find the value of s'. The negative sign indicates that the image is inverted.
Using the given values, we can now calculate the magnification and the value of s'. Plugging in s = 45.0 cm, we find that s' = -ns = -(2/3)(45.0 cm) = -30.0 cm. This means that the image is located 30.0 centimeters from the mirror and is inverted compared to the object.
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A random number generator is used to select a number from 1 to 50 (inclusively). What is the probability of selecting the number 28?
(Type an integer or a decimal. Do not round.)
Answer:
the answer is 1/50
Step-by-step explanation:
A random number generator is used to select an integer from 1 to 50. Since random number generator generates any number randomly, all the numbers from 1 to 50
suppose that you are dealt 5 cards from a well shuffled deck of cards. what is the probability that you receive a hand with exactly three suits
Probability of receiving a hand with exactly three suits \(= (4 * (13^3)) / 2,598,960\)
What is Combinatorics?
Combinatorics is a branch of mathematics that deals with counting, arranging, and organizing objects or elements. It involves the study of combinations, permutations, and other related concepts. Combinatorics is used to solve problems related to counting the number of possible outcomes or arrangements in various scenarios, such as selecting items from a set, arranging objects in a specific order, or forming groups with specific properties. It has applications in various fields, including probability, statistics, computer science, and optimization.
To calculate the probability of receiving a hand with exactly three suits when dealt 5 cards from a well-shuffled deck of cards, we can use combinatorial principles.
There are a total of 4 suits in a standard deck of cards: hearts, diamonds, clubs, and spades. We need to calculate the probability of having exactly three of these suits in a 5-card hand.
First, let's calculate the number of favorable outcomes, which is the number of ways to choose 3 out of 4 suits and then select one card from each of these suits.
Number of ways to choose 3 suits out of 4: C(4, 3) = 4
Number of ways to choose 1 card from each of the 3 suits\(: C(13, 1) * C(13, 1) * C(13, 1) = 13^3\)
Therefore, the number of favorable outcomes is \(4 * (13^3).\)
Next, let's calculate the number of possible outcomes, which is the total number of 5-card hands that can be dealt from the deck of 52 cards:
Number of possible outcomes: C(52, 5) = 52! / (5! * (52-5)!) = 2,598,960
Finally, we can calculate the probability by dividing the number of favorable outcomes by the number of possible outcomes:
Probability of receiving a hand with exactly three suits =\((4 * (13^3)) / 2,598,960\)
This value can be simplified and expressed as a decimal or a percentage depending on the desired format.
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L is the circle with the equation x²+y²=9
full question in photo :)
The values of the variables, a, b, and c obtained from the equation of the circle and the coordinates of the point P are;
a) a = 2
b = -2
c = 4
What is the general equation of a circle?The general equation of a circle is; (x - h)² + (y - k)² = r²
Where;
(h, k) = The coordinates of the center of the circle
r = The coordinates of the radius of the circle
The specified equation of a circle is; x² + y² = 9
The coordinates of the center of the circle, is therefore, O = (0, 0)
a) The coordinates of the points P and O indicates that the gradient of OP, obtained using the slope formula is; ((3·√3)/4 - 0)/(3/2 - 0) = ((3·√3)/4)/(3/2)
((3·√3)/4)/(3/2) = (√3)/2
The specified form of the gradient is; (√3)/a, therefore;
(√3)/a = (√3)/2
a = 2
The value of a is 2
b) The gradient of the tangent to a line that has a gradient of m is -1/m
The gradient of OP is; (√3)/2, therefore, the gradient of the tangent at P is -2/(√3)
The form of the gradient of the tangent at P is b/(√3), therefore;
-2/(√3) = b/(√3)
b = -2
The value of b is; -2
c) The coordinate of the point on the tangent, (0, (7·√3)/c) indicates
Slope of the tangent = -2/(√3)
((7·√3)/c - ((3·√3)/4))/(0 - (3/2)) = -2/(√3)
((7·√3)/c - ((3·√3)/4)) = (3/2) × 2/(√3) = √3
(7·√3)/c = √3 + ((3·√3)/4) = 7·√3/4
Therefore; c = 4
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Mr slone said that his car was worth $32,000 when it was purchased.however over the last 3 years $6300. What integer represents the average decrease in value per year?
Hi! I'm happy to help!
To solve this, we need to first find how much the car value decreased.
The car started at $32,000, but dropped down to $6,300. To find the value drop, we use subtraction.
$32,000-$6300
$25,700
Now we know that his car value dropped $25,700 in value over the course of 3 years. Now we need to figure out how much value it dropped per year. To do this, we split the money into 3 years.
$25,700÷3
$8,566.6666666...
We can round this to $8,567
On average, his car lost $8,567 in value, per year. Now, we need to find how much value his car had after one year in order to get our integer. (a fraction of 2 whole numbers)
$32,000-$8,567
$23,433
Now that we know what his can was worth after one year, we can say that his can was worth $23,433 out of the $32,000 originally was worth. Out of can mean division, or fraction, and because these are both whole numbers, and integer. This is our integer:
\(\frac{23433}{32000}\)
Since we cannot simplify it, this is our integer that represents the average decrease in value per year.
I hope this was helpful, keep learning! :D
Mrs Patel drives to work each day. Sometimes she must stop at a set of traffic lights.
In the past 50 working days she has stopped at this set of traffic lights 32 times.
a: Find the experimental probability that Mrs Patel will have to stop at this set of lights tomorrow.
b: Find the experimental probability that she will not have to stop at the lights next Wednesday
Answer:
a: The experimental probability that Mrs Patel will have to stop at this set of lights tomorrow is 32/50 = 0.64.
b: The experimental probability that she will not have to stop at the lights next Wednesday is 1 - 0.64 = 0.36.
Step-by-step explanation:
The probabilities of an event occurring based on the outcomes of an experiment is known as the experimental probability.
The experiment in this scenario involves Mrs. Patel driving herself to work every day. She stopped 32 times at this set of traffic signals during the course of the experiment's 50 working days. The experimental likelihood that she will have to stop at this set of lights tomorrow is 0.64 based on these findings.
The experimental probability is usually more accurate than the theoretical probability because it is based on actual data. However, the experimental probability can be affected by chance.
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The mathematical equation relating the independent variable to the expected value of the dependent variable that is,
E(y) = 0 + 1x,
is known as the
regression model.
regression equation.
estimated regression equation
correlation model.
The mathematical equation E(y) = 0 + 1x is known as the regression equation.
In the context of regression analysis, the regression equation represents the relationship between the independent variable (x) and the expected value of the dependent variable (y). The equation is written in the form of y = β0 + β1x, where β0 is the y-intercept and β1 is the slope of the regression line.
The regression equation is the fundamental equation used in regression analysis to model and predict the relationship between variables. It allows us to estimate the expected value of the dependent variable (y) based on the given independent variable (x) and the estimated coefficients (β0 and β1).
The coefficient β0 represents the value of y when x is equal to 0, and β1 represents the change in the expected value of y corresponding to a one-unit change in x. By estimating these coefficients from the data, we can determine the equation that best fits the observed relationship between the variables.
The regression equation is derived by minimizing the sum of squared residuals, which represents the discrepancy between the observed values of the dependent variable and the predicted values based on the regression line. The estimated coefficients are obtained through various regression techniques, such as ordinary least squares, which aim to find the line that minimizes the sum of squared residuals.
Once the regression equation is established, it can be used to make predictions and understand the relationship between the variables. By plugging in different values of x into the equation, we can estimate the corresponding expected values of y. This allows us to analyze the effect of the independent variable on the dependent variable and make predictions about the response variable based on different levels of the predictor variable.
In summary, the mathematical equation E(y) = 0 + 1x is known as the regression equation. It represents the relationship between the independent variable and the expected value of the dependent variable. By estimating the coefficients, the equation can be used to make predictions and analyze the relationship between the variables. The regression equation is a fundamental tool in regression analysis for understanding and modeling the relationship between variables.
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Evaluate 9.1p + 8.9r when p = 6 and r =7.
Answer: 116.9
Step-by-step explanation: 9.1 x 6= 54.6. 8.9 x 7= 62.3. Add the values together and there you go
Pls I need help it's due today and I'm failing
Answer:
What Can I Help With Sir?
There Is Nothing Posted!
How do you do question 22
Answer:
∠YXZ = 58°
Step-by-step explanation:
Use the angle sum theorem and the given relations.
∠WXY +∠WXV = ∠YXV
∠WXY +(11° +3∠WXY) = 139°
4∠WXY = 128° . . . . . subtract 11°
∠WXY = 32° . . . . . . . divide by 4
Similarly, ...
∠WXY +∠YXZ = 90°
∠YXZ = 90° -∠WXY = 90° -32°
∠YXZ = 58°
im not sure how to write this on here, so i took a picture. im sorru its not many points i cant afford it, but please show the work
Answer:
f(- 5) = 1;f(12) = 8 1/6.---------------------------
You need to find the value of f(x) when x = - 5 and x = 12.
For x = - 5 use the middle function:
f(- 5) = \(\sqrt{-5+6}\) = \(\sqrt{1}\) = 1For x = 12 use the bottom function:
f(12) = 2/12 + 8 = 1/6 + 8 = 8 1/6Write an equation to represent the total cost of a paint job, y, as a function of the number of hours spent painting, x.
The equation to represent the total cost of a paint job, y, as a function of the number of hours spent painting, x is y = 30x + 50.
What is an equation?
Two expressions are connected with an equal sign is known an equation.
Assume the linear equation will be y = mx + c.
Given that the cost to paint for 3 hours is $140.
Putting x = 3 and y = 140 in y = mx + c
140 = 3x + c .....(i)
Given that the cost to paint for 5 hours is $200.
Putting x = 5 and y = 200 in y = mx + c
200 = 5x + c .....(ii)
Subtract equation (i) from (ii)
5x + c - 3x - c =200 - 140
2x = 60
x = 30
Putting x = 30 in 140 = 3x + c
140 = 3×30 + c
140 = 90 + c
c = 50.
The equation is y = 30x + 50.
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13/14
16 15
10
12 11
The diagram shows parallel lines a and b cut by
transversals c and d.
If m/1 = 123° and m/8= 110°, what is the measure of each of the following angles?
m/4=
m/10=>
m/16=
m/5=>
m/11=
Answer:
Using the properties of parallel lines and transversals, we can find the measures of the missing angles:
m/1 = m/2 (alternate interior angles)
m/1 = m/5 + m/4 (interior angles on the same side of transversal c)
m/8 = m/5 (corresponding angles)
m/8 = m/7 + m/6 (interior angles on the same side of transversal d)
We can use these equations to solve for the missing angles:
m/4 = m/1 - m/5 = 123° - 10° = 113°
m/10 = m/1 - m/8 = 123° - 110° = 13°
m/16 = m/8 + m/7 + m/6 = 110° + m/7 + m/6
m/5 = m/8 = 110°
m/11 = m/1 - m/10 - m/5 = 123° - 13° - 110° = 0°
Note that m/11 is 0°, which means that line b and transversal c are parallel, and there is no intersection between them.
what is the chang in temperture from -24 to 15?
Answer:
38 degree difference
Step-by-step explanation:
24 + 15 =39
But they share the 0 degree spot so minus one.
39-1=38
2 (12-y)= 23- (2y-1)
-7
-4
-1
-2
y
7
14
35
56
slope:
Answer:
write the question correctly so I can help you
Step-by-step explanation:
help pls last question
The relationship between the number of days and
the height of a banana tree represents a linear
function because the banana tree's growth is
constant. Alani works at the garden center and
wants to write an equation to track the height of the
banana tree after d days. She writes the following
equation:
The equation allows us to chart the tree's development over time and forecast its ultimate height.
what is function ?A function is a mathematical formula that allots each input from one set, known as the domain, to precisely one output from another set, known as the range. A function can be used to model relationships between variables, answer issues, and make predictions. It can be represented by an equation, a graph, a table, or a verbal description. Numerous branches of mathematics, as well as disciplines like physics, engineering, finance, and computer science, make extensive use of functions. Typical instances of functions include: When a function is graphed, it always changes at the same rate and forms a straight line. They are frequently used to simulate relationships between two variables that are related linearly, such as time and location.
given
After d days, Alani created the following algorithm to measure the height of the banana tree:
h = d + 8
Since this function is linear, the banana tree's development will remain constant over time. According to the calculation, the tree starts out at a height of 8 units, and it increases by 1 unit per day after that.
We can enter a figure for d (the number of days) and solve for h using this equation (the height of the tree after d days). For instance, we can enter d = 10 into the calculation to get the height of the tree after 10 days:
h = 10 + 8
h = 18
Therefore, the altitude of the banana plant after 10 days would just be 18 units. This equation allows us to chart the tree's development over time and forecast its ultimate height.
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What is the y-value of the solution to the system of equations? 3x 5y = 1 7x 4y = −13
The solution to the system of equations is x = -3 and y = 2. The y-value of the solution is 2
To find the y-value of the solution to the system of equations, we can solve the system using any suitable method such as substitution or elimination.
Given system of equations:
3x + 5y = 1
7x + 4y = -13
Let's use the method of elimination to solve the system:
Multiply equation 1 by 4 and equation 2 by 5 to make the coefficients of y in both equations equal:
4(3x + 5y) = 4(1) --> 12x + 20y = 4
5(7x + 4y) = 5(-13) --> 35x + 20y = -65
Now, subtract equation 1 from equation 2 to eliminate the y term:
(35x + 20y) - (12x + 20y) = -65 - 4
35x - 12x = -69
23x = -69
x = -69/23
x = -3
Substitute the value of x into equation 1 to find y:
3(-3) + 5y = 1
-9 + 5y = 1
5y = 1 + 9
5y = 10
y = 10/5
y = 2
Therefore, the solution to the system of equations is x = -3 and y = 2. The y-value of the solution is 2.
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Decide whether the function is linear or nonlinear using both a table and a graph. (Pls help I don’t understand)
y =3x+2
Answer:
\(\huge\boxed{\sf{Linear}}\)
Step-by-step explanation:
Hello.
This function is linear.
Remember, linear functions look like so:
y=mx+b (where m = slope & b = y-intercept)
Is y=3x+2 linear? Sure!
Compare:
y=mx+b
y=3x+2
They look the same, huh? The only difference is that the first one has variables, and the second one has numbers. ;)
Now, what about the graph?
All linear functions have a graph that looks like a straight line.
I hope it helps.
Have a great day.
\(\boxed{imperturbability}\)
Evaluate the following . 3^7 x 3^4
Answer:
Step-by-step explanation:
This is about the rules of indices.
Multiplication of number with powers are addition for example:
a^n × a^m = a^n+m
So 3^7 × 3^4
3^7+4
3^11
Adiosss
By the way if I'm wrong let me know
Answer:
3^11 or 177147 or 1.77147x10^5
Step-by-step explanation:
7+4=11
There are 24 students in a class. Three new students join the class. Work out the percentage change in the number of students in the class.
Answer:
12.5% increase
Step-by-step explanation:
To find the percentage increase ( students joined)
Take the new number minus the original amount
There are 27 students in the class after 3 joined
27 - 24 = 3
Divide by the original amount
3/24 = 1/8 = .125 = 12.5%
Answer:
12.5%
Step-by-step explanation:
Intial number = 27
Final number = 24 + 3 = 27
Percentage change :-
% change = 3/24 × 100 % change = 100/8 % Change = 25/2 % change = 12.5 %Bristol's credit card has a 30.99% APR, a minimum monthly payment of 3.5%, and a current statement balance of $4,186.19. She spends $750.00 in purchases and makes the current minimum monthly payment of $146.52. What will be Bristol's next minimum monthly payment?
a)$123.69
b)$145.50
c)$167.64
d)$171.97
Bristol's next minimum monthly payment is $171.97
How was the minimum monthly payment of $146.52 computed?
The minimum monthly payment of $146.52 was computed from the current statement balance as 3.5% of $4,186.19
minimum monthly payment=$4,186.19*3.5%
minimum monthly payment=$146.52
The balance at the beginning next month is current statement balance minus the minimum monthly payment plus purchases of $750.00 and the interest for the month
beginning balance next month before interest=($4,186.19-$146.52)+ $750.00
beginning balance next month before interest=$4,789.67
beginning balance next month after interest=$4,789.67*(1+30.99%/12)
beginning balance next month after interest=$4,913.36
Bristol's next minimum monthly payment=3.5%*$4,913.36
Bristol's next minimum monthly payment=$ 171.97
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convert 336g to m³
\(336g \: to \: m3\)
The conversion 336g to m³ is impossible because they measure different units
How to convert 336g to m³From the question, we have the following parameters that can be used in our computation:
Convert 336g to m³
To convert a unit to another, the units must measure the same quantity
Take for instance:
Grams can be converted to kilograms because they both measure mass
Using the above as a guide, we have the following:
336g to m³ cannot be done because of the different quantities they represent
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A hockey team plays 42 matches. It wins 21, draws 14 and loses the rest. Express each of these results as a percentage of the total number of games played.
Express the number of each result as a fraction of the total number of games played and multiply with 100.
The percentage of the games won is :21/42 × 100 = 50%The percentage of the draw games is :14/42 × 100 = 100/3 = 33 1/3%The percentage of the games lost is :42-21-14/42 × 100 = 7/42 × 100 = 50/3 = 16 2/3%IP The x and y components of a vector
r
are r
x
= 14 m and r
y
=−8.5 m, respectively. Find the direction and of the vector
r
. Express your answer using two significant figures. Part B Find the magnitude of the vector
r
. Express your answer using two significant figures. Suppose tha r
x
and r
y
are doubled, find the direction and the magnitude of the new vector
r
′
. Express your answer using two significant figures. Part D Express your answer using two significant figures
The magnitude of the vector r is 16.4 m (approx). The magnitude of the new vector r' is 32.8 m (approx).
Part A:
The direction of the vector r is given by the angle θ that it makes with the x-axis as shown below.
As per the given data,x-component of vector r = r_x = 14 my-component of vector r = r_y = −8.5 m
Let's calculate the magnitude of the vector r first using the Pythagorean theorem as follows:
r = √(r_x² + r_y²)
r = √((14 m)² + (-8.5 m)²)
r = √(196 m² + 72.25 m²)
r = √(268.25 m²)
r = 16.4 m (approx)
Thus, the magnitude of the vector r is 16.4 m (approx).
Now, let's calculate the direction of the vector r, which is given by the angle θ as shown in the above diagram:
θ = tan⁻¹(r_y / r_x)
θ = tan⁻¹((-8.5 m) / (14 m))
θ = -30.1° (approx)
Thus, the direction of the vector r is -30.1° (approx).
Part B: We have already calculated the magnitude of the vector r in Part A as 16.4 m (approx).
Therefore, the magnitude of the vector r is 16.4 m (approx).
Part C:If r_x and r_y are doubled, then the new components of the vector r' are given by:
r'_x = 2
r_x = 2(14 m)
= 28 m and
r'_y = 2
r_y = 2(-8.5 m)
= -17 m.
Let's calculate the magnitude of the vector r' first using the Pythagorean theorem as follows:
r' = √(r'_x² + r'_y²)
r' = √((28 m)² + (-17 m)²)
r' = √(784 m² + 289 m²)
r' = √(1073 m²)
r' = 32.8 m (approx)
Thus, the magnitude of the new vector r' is 32.8 m (approx).
Now, let's calculate the direction of the vector r', which is given by the angle θ' as shown in the below diagram:
θ' = tan⁻¹(r'_y / r'_x)
θ' = tan⁻¹((-17 m) / (28 m))
θ' = -29.2° (approx)
Thus, the direction of the new vector r' is -29.2° (approx).
Part D:We have already calculated the magnitude of the new vector r' in Part C as 32.8 m (approx).
Therefore, the magnitude of the new vector r' is 32.8 m (approx).
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An object is moving at a speed of 2 centimeters ever 7 seconds. express this speed in meters per week.
The speed of the object is 12121 m per week.
What does it mean to do speed?
“Speed” is a street name for various stimulant drugs that teens, young adults and others use to feel more alert and focused, and in some cases, to feel high. Some people also use various forms of speed to reduce their appetite. Types of speed include: Amphetamines (used to treat ADHD, narcolepsy, and depression)The object is moving at a speed of 2 centimeters every 7 seconds.
We need to find the speed in m per week.
2 cm = 0.02 m
1 week = 604800 s
7 s = \(1.65 * 10^{-6} week\)
Speed = distance/time
So,
\(v = \frac{0.02 m}{1.65 * 10^{-6 } week}\)
\(v = 12121.21 m/ week\)
or v = 12121 m/ week
So, the speed of the object is 12121 m per week.
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I NEED HELP WITH THIS ONE TOO !!
Answer:
40°
100 + 80 = 180
60 + 80 = 140
140+ 40 = 180
Step-by-step explanation:
Answer:
m<C+m<D=100 degrees m<D=40 degrees
Step-by-step explanation:
fill in the table using this function rule. y=2x+5. 1 ( ) 4( ) 5( ) 10( ) please help and dont make it complicated
Answer:
The complete table is as follows:
x y
1 7
4 13
5 15
10 25
Step-by-step explanation:
Given the function
\(y=2x+5\)
Given the table
x y
1 blank
4 blank
5 blank
10 blank
Substitute x = 1 in the function
y = 2x+5
y = 2(1)+5 = 2+5 = 7
so, when x = 1, y = 7 i.e. (1, 7) is the point on the table
Substitute x = 4 in the function
y = 2x+5
y = 2(4)+5 = 8+5 = 13
so, when x = 4, y = 13 i.e. (4, 13) is the point on the table
Substitute x = 5 in the function
y = 2x+5
y = 2(5)+5 = 10+5 = 15
so, when x = 5, y = 15 i.e. (5, 15) is the point on the table
Substitute x = 10 in the function
y = 2x+5
y = 2(10)+5 = 20+5 = 25
so, when x = 10, y = 25 i.e. (10, 25) is the point on the table
Therefore, the complete table is as follows:
x y
1 7
4 13
5 15
10 25
which equation best describes the line that passes thru (-4,7) with a slope of 3?
Answer:
\(y = 3x + 19\)
Step-by-step explanation:
\(7 = 3( - 4) + b\)
\(7 = - 12 + b\)
\(b = 19\)