Rate of Change

Question 1

Check each relation below that is a direct variation.

Revolt · Accepted Answer

y = 6x; The graph below:

Question 2

–24✔ 12–1624

Revolt · Accepted Answer

12

Question 3

Now find the change in x. The change in x is The average rate of change of f(x) = x2 + 5x −12 from x = −2 to x = 1 is .

Revolt · Accepted Answer

3; Selection 1: 3; Selection 2: 4

Question 4

.

Revolt · Accepted Answer

4

Question 5

A direct variation function includes the ordered pair (4, 5). Which statement is true?

Revolt · Accepted Answer

The constant of variation k is .

Question 6

If y varies directly with x, and y is 14 when x is 2, what is the value of x when y is 35?x =

Revolt · Accepted Answer

5

Question 7

mc001-1.jpg

Revolt · Accepted Answer

mc001-2.jpg

Question 8

Use the graph to answer the question.What is the average rate of change from x = 3 to x = 11?

Revolt · Accepted Answer

-

Question 9

The average rate of change from x = -2 to x = 6 for the function shown in the graph is .

Revolt · Accepted Answer

–1/2

Question 10

Choose the intervals where the graph has a decreasing average rate of change.

Revolt · Accepted Answer

x = 3 to x = 6; x = 4 to x = 8

Rate of Change Answers