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Slope-Intercept Form of a Line Answers

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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.
2
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The table represents a linear function.

Question illustration
A
–6
B
–4
C
4
D
6
3

The graph of a linear function is shown.

Question illustration
A
positive
B
negative
C
zero
D
undefined
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

Which graph has a slope of ?

Question illustration
A
Option
B
Option
C
Option
D
Option
6

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.

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