Function Inverses

Question 1

The equation of this type of line is y = kx. What is special about k?

Revolt · Accepted Answer

C: k is the slope of the line.

Question 2

Based on the graph shown to the right, whose phone cost varies directly with the amount of time spent talking? Mark’s only✔ Nikiya’s onlyboth Mark’s and Nikiya’s

Revolt · Accepted Answer

B: Nikiya’s only

Question 3

Mark’s cost does not vary directly with time spent talking because the cost for t = 0 is undefined✔ the cost of 0 hours is not 0 dollarsthe C-intercept is 0

Revolt · Accepted Answer

B: the cost of 0 hours is not 0 dollars

Question 4

What are the coordinates for the end of the interval?

Revolt · Accepted Answer

A: (9, 4)

Question 5

Which graph shows a function that always has a negative average rate of change?

Revolt · Accepted Answer

B:

Question 6

What is the average rate of change for this function on the given interval?

Revolt · Accepted Answer

B:

Question 7

Base on these results, the runner ran at a rate between 0.5 and 2 hours than between 1.5 and 2.5 hours.

Revolt · Accepted Answer

B: slower

Question 8

The ratios

Revolt · Accepted Answer

B: are not constant;

Question 9

which represents Nikiya’s total cost✔ cost per hourtime spent talking

Revolt · Accepted Answer

B: cost per hour

Question 10

For this function, the average rate of change as x increases.

Revolt · Accepted Answer

A: increases

Function Inverses Answers

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