PLEASE HELPPP MEEE WITHH THIS QUESTIONN PLEASEEE

A

Step-by-step explanation:

To find the average rate of change, you use the formula . The best way to get the correct answer is to plug in each interval to make sure it equals 0.

-1 ≤ x ≤ 2: Correct

                                   [solve for f(2) and f(1)]

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-3 ≤ x ≤ -2: Incorrect

                                 [solve for f(-2) and f(-3)]

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-5 ≤ x ≤ 5: Incorrect

                                   [solve for f(5) and f(-5)]

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2 ≤ x ≤ 3: Incorrect

                                     [solve for f(3) and f(2)]

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After going through all the intervals, we found that A was the only one that has an average rate of change of 0.

5x+40

5(x + 8)

7x - 49

7(x - 7)

18x + 9

9(2x + 1)

15x - 10

5(3x - 2)

step-by-step explanation:

for number one all you have to do is factor 5 out of 5x + 40

for number 2 factor 7 out of 7x - 49

for number three factor 9 out of 18x + 9

for number four factor 5 out of 15x - 10

x = 17

step-by-step explanation:

1st step: isolate x.

24 - 3x = -27

-24         -24

-3x   =   -51

2nd step: divide.

-3x     =   -51

  3             3

  x       =     17

hope this