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Slope and Linear Equations Review

Total questions: 109

Worksheet time: 55hrs 30mins

Name
Class
Date
1.
Find the slope:
a)
3/4
b)
4/3
c)
-3/4
d)
-4/3
2.
The line pictured has a(n) ______ slope.
a)
Undefined
b)
Zero
c)
Positive
d)
Negative
3.

What is the slope of the line that passes through the points (4, 9) and (1, 6)?

a)

1

b)

-3

c)

3

d)

-1

4.

What is the slope of the line that passes through the points (-4, -1) and (-2, -5)?

a)

1/2

b)

-1/2

c)

2

d)

-2

5.
What is the slope?
a)
Positive
b)
Negative
Negative
c)
Zero
d)
Undefined
6.

What is the slope of :

a)

m=13m=\frac{1}{3}

b)

m=3m=3

c)

m=−13m=-\frac{1}{3}

d)

m=−3m=-3

7.

What is the slope of :

a)

m=13m=\frac{1}{3}

b)

m=3m=3

c)

m=−13m=-\frac{1}{3}

d)

m=−3m=-3

8.

state the slope:

a)

m=45m=\frac{4}{5}

b)

m=−45m=-\frac{4}{5}

c)

m=54m=\frac{5}{4}

d)

m=−54m=-\frac{5}{4}

9.
Find the slope of the line.
a)
-2
b)
2
c)
-1
d)
1
10.
Find the slope of the line.
a)
Undefined
b)
0
c)
1
d)
-1
11.
What does the slope tell you about the line?
a)
Steepness
b)
Direction
c)
Rate of change
d)
All of the above
12.
Dev keeps a record in graph form of how far his car travels and the number of gallons of gasoline it uses.
What is the slope of the graph?
a)
64
b)
128
c)
32
d)
16
13.
Find the slope of the line.
a)
1/4
b)
-1/4
c)
-4
d)
4
14.
Find the slope from the table:
a)
-2/5
b)
5/-2
c)
5/2
d)
2/5
15.
Find the slope.
a)
-3
b)
-1/3
c)
3
d)
1/3
16.
Find the slope of the line.
a)
1/4
b)
-1/4
c)
-4/1
d)
4/1
17.
Find the slope of the line.
a)
1/2
b)
-1/2
c)
2/1
d)
-2/1
18.
Calculate the slope.
a)
m=-4/3
b)
m=4/3
c)
m=-3/4
d)
m=3/4
19.
Which of the following is the equation of a line with a slope of 6 and a y-intercept of −3?
a)
y = 6x + 3
b)
y= -3x + 6
c)
y = -6x - 3
d)
Not here
20.
What is the slope of the line
y = 3x -5 
a)
-5
b)
-5/3
c)
5/3
d)
3
21.
Find the slope of the line.
a)
1/2
b)
-1/2
c)
2
d)
-2
22.

Find the slope from the table.

a)

1/4

b)

-1/4

c)

-4

d)

4

23.
What is the y-intercept of this graph?
a)
(0,1)
b)
(0,-2)
c)
(0,0)
d)
(0,3)
24.
What is the y-intercept of the line graphed below?
a)
3
b)
4
c)
-3
d)
4/3
25.
Which line has a negative slope?
a)
Yellow
b)
Red
c)
Blue
d)
Green
26.
Which runner was faster?
a)
Runner A
b)
Runner B
27.
What is the y-intercept?
a)
-1
b)
3
c)
-3
d)
-2
28.
What type of slope does the following graph have?
a)
Postive
b)
Negative
c)
Zero Slope
d)
Undefined
29.
Find the slope from the table.
a)
-4
b)
1
c)
4
d)
-2
30.
What is the slope?
a)
-1/3
b)
-3
c)
-4
d)
5
31.

What is the y-intercept of the line?

a)

1/2

b)

1

c)

-1/2

d)

-1

32.
What does the slope mean in the context of the problem?
a)
The cost will increase by $1.40 per topping
b)
The cost will decrease by $1.40 per topping
c)
The cost will increase by $1.90 per topping
d)
The cost will decrease by $1.90 per topping 
33.
What is the meaning of the y-intercept?
a)
The hamburger will cost $1.90 without any toppings.
b)
The hamburger will cost $1.40 without any toppings. 
c)
The cost of the hamburger is $1.90 with one topping
d)
The cost of the hamburger doesn't change no matter how many toppings there are.
34.
What is the meaning of the y-intercept?
a)
The cost per ride is $1.75
b)
The cost per ride is $5
c)
The cost to get into the fair is $5
d)
The cost to get into the fair is $1.75
35.
What is the meaning of the slope?
a)
Her bill will increase by $2.95 for every grandchild she brings.
b)
The cost for Mrs. Franklin's meal is $6.85
c)
Her bill will increase by $6.85 for every grandchild she brings.
d)
The cost for Mrs. Franklin's meal is $2.95
36.
What is the meaning of the slope? (Hint: choose two points! Hours rented (x) and amount paid (y))
a)
The cost will increase by $12 per hour
b)
The initial fee is $15 before hourly charges
c)
The cost will increase by $15 per hour
d)
The initial fee before hourly charges is $12
37.
What is the meaning of the y-intercept? (Hint: what would the amount be for 0 hours?)
a)
The cost will increase by $12 per hour
b)
The initial fee is $15 before hourly charges
c)
The cost will increase by $15 per hour
d)
The initial fee before hourly charges is $12
38.
What is the meaning of the y-intercept?
a)
Colby's initial deposit was $100. 
b)
Colby's initial deposit was $150
c)
Colby is adding $5 per week
d)
Colby is adding $10 per week
39.
What is the meaning of the y-intercept?
a)
The cost for the service without any hours of calling is $5
b)
The cost of the service without any hours of calling is $6
c)
The cost per minute is $0.05
d)
The cost per minute is $0.50
40.
What is the meaning of the slope?
a)
The cost for the service without any hours of calling is $5
b)
The cost of the service without any hours of calling is $6
c)
The cost per minute is $0.05
d)
The cost per minute is $0.50
41.
What is the slope?
a)
$2/1 mile drive
b)
$1/2 miles driven
c)
2 miles driven/$1 
d)
1 mile driven/$2
42.
A climber is on a hike. After 2 hours he is at an altitude of 400 feet. After 6 hours, he is at an altitude of 700 feet. What is the average rate of change? 
a)
200
b)
150
c)
300
d)
75
43.
At what rate did the rain fall?
a)
2 cm per hour
b)
1/4 cm per hour
c)
1/2 cm per hour
d)
4 cm per hour
44.
Which statement matches the graph?
a)
Taylor can write 6 words per minute
b)
Taylor can write 25 words per minute
c)
Taylor can write 50 words per minute
d)
Taylor can write 150 words per minute
45.
Charlie rented a moving truck. He paid a daily fee plus a per-mile fee to rent the truck. The equation below represents the daily amount Charlie paid for the truck if he drives it x miles.
y=0.5x+10
What does the slope of the graph of this equation represent?
a)
The daily fee for the moving truck
b)
The per-mile fee for the moving truck
c)
How much Charlie paid for the truck
d)
The number of miles he drove
46.
The graph represents gasoline consumption when driving a certain distance in km.  What is the meaning of the slope?
a)
The tank started with 50 L of gasoline
b)
the amount of gasoline consumed per km driven
c)
the distance it takes to lose a Liter of gas
d)
the gasoline is leaking because the slope is negative.
47.

The table represents a used car salesman's monthly salary including commission made on the sale of cars. What is the y-intercept and what does it represent?

a)

The y-intercept is $850/car and it represents the commission per car sold.

b)

The y-intercept is $1500/car and it represents the commission per car sold.

c)

The y-intercept is $1500 and it represents the monthly salary before selling any cars.

d)

The y-intercept is $2775 and it represents the monthly salary before commission.

48.
The table represents a used car salesman's monthly salary including commission made on the sale of cars.  What is the slope and what does it represent?
a)
The slope is $850/car and it represents the commission per car sold.
b)
The slope is $425/car and it represents the commission per car sold.
c)
The slope is $1500 and it represents the monthly salary before commission.
d)
The slope is $850 and it represents the monthly salary before commission.
49.
The cost of staying at a hotel can be found using the function y=129x+9.95, where x is the number of days a guest stays at the hotel and y is the cost in dollars. The cost includes a flat fee for Internet access. If the fee for Internet access is not included, which statement is true?
a)
The cost is $9.95 less per day
b)
The cost is $9.95 less
c)
The cost is $9.95 more per day
d)
The cost is $9.95 more
50.
An online music service lets customers download an unlimited number of songs for $0.25 each after paying a monthly membership fee of $5.00. The total amount of money a customer spends on music in dollars in a single month can be found using the function y=0.25x+5. What does the variable x represent in this function?
a)
The total amount of money the customer spends on music each month
b)
The number of songs the customer downloads each month
c)
The number of customers that use the music service
d)
The cost of downloading one song 
51.
The equation c = 0.20t + 3.50 shows the relationship between the charge c in dollars for renting a kayak for t minutes.What is the meaning of the y-intercept?
a)
It costs $3.50 per minute to rent a kayak.
b)
For $0 you can rent a kayak for 3.5 minutes.
c)
Every 3.50 minutes, you have to pay $1.00.
d)
You have to pay $3.50 up front before using the kayak.
52.
The equation c = 0.20t + 3.50 shows the relationship between the charge c in dollars for renting a kayak for t minutes.  What is the meaning of the slope of the equation?
a)
For $1.00, you can rent a kayak for 20 minutes.
b)
It costs $0.20 per minute to rent the kayak.
c)
You have to pay $0.20 up front before using the kayak at all.
d)
Every .2 minutes, you have to pay $1.00.
53.
What is the meaning of the y-intercept?
a)
Mrs. Franklin's meal will cost $6.85 if she brings no grandchildren. 
b)
Mrs. Franklin's meal will cost $2.95 if she brings no grandchildren. 
c)
Mrs. Franklin's bill will increase by $2.95 for every grandchild she brings. 
d)
Mrs. Franklin's meal will decrease by $2.95 for every grandchild she brings.
54.
What is the meaning of the slope?
a)
You will receive $4 per paper delivered.
b)
You will receive $5 per paper delivered
c)
You will receive $20 per paper delivered
d)
You will receive $20 for the day
55.

The graph shows the weight of a bucket as it is filled with sand. What is the weight of the empty bucket?

a)

0 pounds

b)

1 pound

c)

2 pounds

d)

6 pounds

56.
 In order to join an online learning community, there is a $20 startup fee and a $5 monthly fee. Write an equation in slope-intercept form that models this situation.
a)
y = 20x + 5
b)
y = 5x +20
57.
Suppose that a bike rents for $4 plus $1.50 per hour. Write an equation in slope-intercept form that models this situation.
a)
y = 4x + 1.50
b)
y = 1.50x + 4
58.
An airplane 30,000 feet above the ground begins descending at a rate of 2,000 feet per minute.  Use your equation to find the altitude of the plane after 5 minutes.
a)
20,000 feet after 5 minutes
b)
40,000 feet after 5 minutes
c)
148,000 feet after 5 minutes
59.
An airplane 30,000 feet above the ground begins descending at a rate of 2,000 feet per minute.  Write an equation to model the situation.
a)
y = 30,000ft - 2,000ft(x)
b)
y = 30,000ft + 2,000ft(x)
c)
y = 30,000ft(x) - 2,000ft
60.
Suppose that the water level of a river is 34 feet and that it is receding at a rate of 0.5 foot per day. Write an equation for the water level, L, after d days. 
a)
L = 34 - 0.5(d)
b)
L = 34(d) - 0.5
c)
d = 34 - 0.5(L)
61.
For babysitting, Nicole charges a flat fee of $3, plus $5 per hour. Write an equation for the cost, C, after h hours of babysitting. 
a)
C = 5h + 3
b)
C = 3h + 5
c)
H = 5c + 3
d)
H = 3c + 5
62.
For babysitting, Nicole charges a flat fee of $3, plus $5 per hour. Write an equation for the cost, C, after h hours of babysitting. How much money will she make if she baby-sits 5 hours?
a)
$28 in 5 hours
b)
$20 in 5 hours
63.
A plumber charges $25 for a service call plus $50 per hour of service. Write an equation in slope-intercept form for the cost, C, after h hours of service. 
a)
C = 25 + 50h
b)
C = 50 + 25h
c)
H = 25 + 50c
d)
H = 50 + 25c
64.
A plumber charges $25 for a service call plus $50 per hour of service. Write an equation in slope-intercept form for the cost, C, after h hours of service. What will be the total cost for 8 hours of work? 
a)
$425 for 8 hours of work
b)
$250 for 8 hours of work
65.
A canoe rental service charges a $20 transportation fee and $30 dollars an hour to rent a canoe. Write an equation representing the cost, y, of renting a canoe for x hours. 
a)
y = 20 + 30x
b)
y = 30 + 20x
c)
y = 50x
d)
y = 60x
66.
A canoe rental service charges a $20 transportation fee and $30 dollars an hour to rent a canoe. Write an equation representing the cost, y, of renting a canoe for x hours. What is the cost of renting the canoe for 6 hours?
a)
$200 for 6 hours
b)
$150 for 6 hours
c)
$300 for 6 hours
d)
$360 for 6 hours
67.
In order to join a dancing club, there is a $30 startup fee and a $4 monthly fee. Write an equation in slope-intercept form that models this situation.  After how many months will the total cost be $58?
a)
7 months
b)
6 months
c)
5 months 
d)
4 months
68.
Suppose that a bike rents for $4 plus $1.50 per hour. Write an equation in slope-intercept form that models this situation.  After how many hours will the bike rental cost a total of $10?
a)
4 hours
b)
3 hours
c)
2 hours 
d)
1 hour
69.
In order to join a yoga club there is a $100 annual fee and a $5 fee for each class you attend. Write an equation in slope-intercept form that models this situation.  After how many classes will the total cost be $200?
a)
20 classes
b)
15 classes
c)
10 classes
d)
200 classes
70.
Suppose that the water level of a river is 34 feet and that it is receding at a rate of 0.5 foot per day. Write an equation for the water level, L, after d days. In how many days will the water level be 26 feet?
a)
16 days
b)
15 days
c)
10 days
d)
9 days
71.

What is the slope of this graph?

a)

m = 12\frac{1}{2}  

b)

m = -1

c)

m = 1

d)

m = −55-\frac{5}{5}  

72.

What is the y-intercept of this graph?

a)

6 fish remaining

b)

5 fish remaining

c)

4 fish remaining

d)

0 fish remaining

73.

How many fish are remaining after Ron sold 2 fish?

a)

they all swam away

b)

3 fish remaining

c)

1 fish remaing

d)

2/3 fish remaining

74.

What is the slope of the graph?

a)

m=8m=8  

b)

m=−305m=-\frac{30}{5}  

c)

m =−405m\ =-\frac{40}{5}  

d)

m=−8m=-8  

75.

Which label is your y-axis?

a)

Jelly remaining (ounces)

b)

Number of sandwiches made

76.

The y-intercept is wherever the linear graph crosses the _____.

a)

taxes

b)

y-axis

c)

x-axis

d)

z-axis

77.
a)

c=16 mc=\frac{1}{6\ }m

b)

c=6mc=6m

c)

c=130mc=\frac{1}{30}m

d)

c=30mc=30m

78.

a)

A

b)

B

c)

C

d)

D

79.

You have $18 to spend on Uber Eats credits and hats for Among us. Uber Eats credits are $2 each and hats for Among Us cost $3 each. How would you interpret the x and y intercepts?

a)

You bought $18 worth of Uber Eats credits and 0 hats for Among Us

b)

You bought $0 worth of Uber Eats credits and $18 worth of hats for Among Us

c)

You bought $2 worth of Uber Eats credits and 3 hats for Among Us

d)

You bought $9 worth of Uber Eats credits and 6 hats for Among Us

80.
a)

F

b)

G

c)

H

d)

J

81.

Interpret the slope of the line y=−2x+3y = -2x + 3 in the context of a real-world scenario where yy represents the temperature in degrees Celsius and xx represents time in hours.

a)

The temperature decreases by 2 degrees Celsius every hour.

b)

The temperature increases by 2 degrees Celsius every hour.

c)

The temperature remains constant.

d)

The temperature decreases by 3 degrees Celsius every hour.

82.

Interpret the slope of the line y=4x−5y = 4x - 5 in the context of a real-world scenario where yy represents the height of a plant in centimeters and xx represents time in weeks.

a)

The height of the plant decreases by 4 centimeters every week.

b)

The height of the plant increases by 4 centimeters every week.

c)

The height of the plant remains constant.

d)

The height of the plant decreases by 5 centimeters every week.

83.

Interpret the y-intercept of the line y=4x+7y = 4x + 7 in the context of a real-world scenario where yy represents the total cost in dollars and xx represents the number of items purchased.

a)

The cost per item is $7.

b)

The initial cost is $4.

c)

The initial cost is $7.

d)

The cost per item is $4.

84.

Interpret the slope of the line y=54x−2y = \frac{5}{4}x - 2 in the context of a real-world scenario where yy represents the distance traveled in kilometers and xx represents time in hours.

a)

The distance traveled decreases by 5 kilometers every 4 hours.

b)

The distance traveled increases by 5 kilometers every 4 hours.

c)

The distance traveled increases by 4 kilometers every 5 hours.

d)

The distance traveled decreases by 4 kilometers every 5 hours.

85.

Interpret the y-intercept of the line y=23x+10y=\frac{2}{3}x+10 in the context of a real-world scenario where yy represents the height of a plant in centimeters and xx represents the number of weeks.

a)

The initial height of the plant is 10 centimeters.

b)

The height of the plant decreases by 3 centimeters every week.

c)

The initial height of the plant is 3 centimeters.

d)

The height of the plant increases by 10 centimeters every week.

86.

A car rental company charges a flat fee of $50 plus $0.20 per mile driven. What is the slope and y-intercept of the cost function?

a)

Slope: 0.20, Y-intercept: 100

b)

Slope: 0.50, Y-intercept: 20

c)

Slope: 0.10, Y-intercept: 50

d)

Slope: 0.20, Y-intercept: 50

87.

A gym charges a monthly membership fee of $30 and an additional $5 for each class attended. What does the slope represent in this scenario?

a)

The slope represents the total monthly fee of $30.

b)

The slope represents the annual membership fee of $360.

c)

The slope represents the cost per class attended, which is $5.

d)

The slope represents the number of classes attended each month.

88.

A phone plan costs $40 per month plus $0.10 per text message. If you graph the total cost against the number of text messages, what does the y-intercept represent?

a)

$40

b)

$40 plus $0.05 per text message

c)

$10

d)

$0

89.

A delivery service charges a base fee of $15 and $2 for each mile driven. If you were to graph this relationship, what would the slope indicate?

a)

The slope indicates the cost per mile driven, which is $2.

b)

The slope indicates the total cost of the delivery service.

c)

The slope represents the base fee of $15.

d)

The slope shows the distance traveled in miles.

90.

A school is selling tickets for a play at $10 each. If they sell 100 tickets, what is the slope of the line representing total sales?

a)

100

b)

15

c)

10

d)

5

91.

A water company charges a fixed fee of $25 plus $1.50 for every 100 gallons used. What does the y-intercept represent in this context?

a)

The y-intercept represents the fixed fee of $25.

b)

The y-intercept represents the maximum charge for water usage.

c)

The y-intercept represents the cost per gallon used.

d)

The y-intercept represents the total cost for 100 gallons.

92.

A taxi service charges a base fare of $3 plus $2 for each mile driven. If you were to graph the cost, what does the slope tell you about the pricing?

a)

The slope shows that the cost decreases by $2 for each mile driven.

b)

The slope indicates a flat rate charge regardless of distance.

c)

The slope represents a one-time fee of $5 for any distance.

d)

The slope indicates that the cost increases by $2 for each mile driven.

93.

A subscription service costs $15 per month plus a one-time fee of $50. What does the y-intercept represent in this pricing model?

a)

The y-intercept represents the monthly subscription cost of $15.

b)

The y-intercept represents the total cost after one year.

c)

The y-intercept represents the cost of the service after cancellation.

d)

The y-intercept represents the one-time fee of $50.

94.

A local farmer sells apples for $2 per pound. If the total cost is graphed against the number of pounds, what does the slope represent?

a)

The slope represents the total weight of apples sold.

b)

The slope represents the number of apples sold per dollar.

c)

The slope represents the profit made per pound of apples.

d)

The slope represents the cost per pound of apples, which is $2.

95.

A concert ticket costs $50 plus a $5 service fee. If you graph the total cost against the number of tickets purchased, what does the y-intercept indicate?

a)

The y-intercept indicates a total cost of $50.

b)

The y-intercept indicates a total cost of $0.

c)

The y-intercept indicates a total cost of $55.

d)

The y-intercept indicates a total cost of $5.

96.

An electrician charges a set fee for every house call and then charges an hourly rate depending on how long the job takes. The total cost, C, of the electrician's services can be determined using the function C=65t+70, where t is the number of hours the electrician spends at the house working.


What is theY-INTERCEPT of the function and what is its interpretation in the context of the problem?

a)

70; which represents the total cost for all services.

b)

70; which represents the set fee for the house call.

c)

65; which represents the total cost for all services.

d)

65; which represents the set fee for the house call.

97.

When Landon left his house in the morning, his cell phone battery was partially charged. The charge remaining in Landon's battery,B, as a percentage, can be modeled by the function B=-5t+30, where t is the number of hours since Landon left his house.


What is the y-intercept of the function and what is its interpretation in the context of the problem?

a)

30; the number of house until Landon's phone dies.

b)

-5; the charge of the battery when Landon woke up.

c)

30; the charge of the battery when Landon left his house.

d)

-5; the percentage of battery Landon's phone loses each hour.

98.

Samantha is in the business of manufacturing phones. She must pay a daily fixed cost to rent the building and equipment, and also pays a cost per phone produced for materials and labor. The function C=125p+400

can be used to determine the total cost,C, in dollars, of producing,p, phones in a given day.


What is the meaning of the slope in the context of the problem?

a)

the total cost to produce all phones

b)

the number of phones produced per day

c)

the additional cost to produce each phone

d)

the number of days to produce all of the phones

99.

Brandon filled up his car with gas before embarking on a road trip across the country. The number of gallons of gas remaining in his gas tank after t hours of driving can be determined using the equation

G=−1.5t+15.


What is the meaning of the slope of the equation in the context of the problem?

a)

the number of gallons of gas used per mile

b)

the initial amount of gas in the tank

c)

the number of gallons of gas used per hour driven

d)

the number of hours driven until the gas tank is empty

100.

Bonnie pays a monthly fee of $80 at the health club and an additional $9 every time she attends a yoga class. Which expression below shows her total cost T if she attends y yoga classes this month?

a)

T = 80 + 9y

b)

T = 80y + 9

c)

T = 80 + 9 + y

d)

T = (80+9)y

101.

Yvette has a home-based business putting on children's parties. She charges $55 to design the party and then $4 per child. Write a function rule that relates the total cost of the party to the number of children n.

a)

f(n) = 4 + 55n

b)

f(n) = 4 - 55n

c)

f(n) = 4n - 55

d)

f(n) = 55 + 4n

102.

The local service center advertises that it charges a flat fee of $50 plus $8 per mile to tow a vehicle. Write an equation that represents the total cost (C) of a service for m miles of towing.

a)

y = 8x + 50

b)

C = 50m +8

c)

y = 50x + 8

d)

C = 8m + 50

103.

A T-shirt design company charges your team an initial fee of $25 to create the team's design. Each t-shirt printed with your design costs an additional $8. The equation for this situation is y = 8x + 25. Interpret the y-intercept in context.

a)

The additional fee of $8.

b)

The initial fee of $25.

c)

The additional fee of $25.

d)

The initial fee of $8.

104.
Which of the following situations could be descried by the equation y= -25x + 120
a)
There are 120 people in the football stadium, and 25 more are entering each hour.
b)
A plumber charges $25 for a house call and $120 per hour.
c)
A teacher has 120 students. Her third period has 25 students
d)
There are 120 gallons of water in a tank. It releases water at a rate of 25 gallons per minute
105.

Bob has $150 in his savings account and saves $40 per month.

a)

y=150 + 40

b)

y=40x + 150

c)

y=150x + 40

106.

A cell phone company charges $60.00 a month for up to 1 gigabyte of data. The cost of additional data is $0.05 per megabyte. If d represents the number of additional megabytes used and c represents the total charges at the end of the month, which linear equation can be used to determine a user's monthly bill?

a)

c = 60 − 0.05d

b)

c = 60.05d

c)

c = 60d − 0.05

d)

c = 60 + 0.05d

107.

Alex is selling tickets to a school play. An adult ticket costs $6.50 and a student ticket costs $4.00. Alex sells x adult tickets and 12 student tickets. Write an equation, C, to represent how much money Alex collected from selling tickets.

a)

C= $6.50x + $4.00(12)

b)

C= $6.50(12) +$4.00x

c)

C=$6.50x+$4.00x +12

d)

C=$10.50x+12

108.

Peyton is signing up for a gym membership with a one-time fee to join and then a monthly fee to remain a member. The total cost of the gym membership, C, over t

months whose graph is shown below.


Write an equation for C in terms of t. (hint: use y=mx+b)

a)

C=40t+150

b)

C=-40t+150

c)

C=50t+150

d)

C=50t-150

109.

When Isabella left her house in the morning, her cell phone battery was partially charged. The charge remaining in Isabella's battery,B, a as a percentage can be modeled by the graph shown below where t represents the time.


Write an equation using slope-intercept form to model this situation.

a)

B= 90t+10

b)

B=10t+90

c)

B=-10t+90

d)

B=-90t+10

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