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Slope of a Line Answers

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Line AB contains points A(4, 5) and B(9, 7). What is the slope of ?

Question illustration
A
–
Option A
B
–
Option B
C
StartFraction 2 Over 5 EndFraction
Option C
D
StartFraction 5 Over 2 EndFraction
Option D
3
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Aaron tracks the time it takes him to mow lawns by writing coordinate points relating x, the time in hours it takes to mow a lawn, and y, the area of land mowed in acres. Two of his points are (3, 1.5) and (5, 2.5). Which statement describes the slope of the line through these two points?

A
It takes Aaron about 1 hour to mow 2 acres.
B
Aaron’s rate for mowing lawns is 0.5 acres per hour.
C
The ratio of acres to time is 5 acres to 3 hours.
D
The rate to mow a lawn is 0.6 hours per acre.
4

At work, Brett must check and record the internal temperature of the freezer on an hourly basis. When working properly, the temperature should remain constant over time. What word describes the slope of a line showing the temperature of the freezer as a function of time in hours when the freezer is working properly?

A
positive
B
zero
C
negative
D
undefined
5

The graph of a linear function is shown.

Question illustration
A
positive
B
negative
C
zero
D
undefined
6

The graph represents the balance on Harrison’s car loan in the months since purchasing the car.

Question illustration
A
The loan balance decreases $500 per month.
B
Harrison makes a monthly payment of $250.
C
The loan balance increases $250 per month.
D
Harrison increases his monthly payment by $500 each month.
7

The table represents a linear function.

Question illustration
A
–6
B
–4
C
4
D
6
8

The graph of a linear function is shown.

Question illustration
A
positive
B
negative
C
zero
D
undefined
9

What phrases can be used to describe the line representing the relationship between the number of balloons remaining and the number of hats created? Select three options.

A
positive slope
B
negative slope
C
constant slope
D
increasing function
E
decreasing function
10

Debi walks laps around the mall for exercise during the winter months. The table represents the number of steps recorded on her pedometer as she walks laps around the mall one day.

Question illustration
A
Debi walks 1,875 steps per lap around the mall.
B
One lap around the mall is equal to 2,425 steps.
C
One lap around the mall is equal to 4,300 steps.
D
Debi walks 6,175 steps per lap around the mall.
11

Which relationship has a zero slope?

Question illustration
A
Option
B
Option
C
Option
D
Option
12

Which graph has a slope of ?

Question illustration
A
Option
B
Option
C
Option
D
Option
13

Vera wants to graph a line that passes through (0, 2) and has a slope of . Which points could Vera use to graph the line? Select three options.

Question illustration
A
(–3, 0)
B
(–2, –3)
C
(2, 5)
D
(3, 4)
E
(6, 6)
14

Which function shows a fabric with a price of $1.25 per square yard?

A
A table showing Price of Fleece with five columns and two rows. The first row, Square Yards, has the entries, 1, 2, 3, 4. The second row, Price, has the entries, $1.25, $2.00, $2.75, $3.50.
Option A
B
A table showing Price of Fleece with five columns and two rows. The first row, Square Yards, has the entries, 1, 2, 3, 4. The second row, Price, has the entries, $0.25, $1.25, $2.25, $3.25.
Option B
C
A coordinate plane showing Price of Fleece. The x-axis shows Number of Square Yards and the y-axis shows Price in dollars. A line starts at (0, 0) and passes through (5, 4) and ends (10, 8).
Option C
D
A coordinate plane showing Price of Fleece. The x-axis shows Number of Square Yards and the y-axis shows Price in dollars. A line starts at (0, 0) and passes through (4, 5) and ends (8, 10).
Option D

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