I need answer for this quick please

Mathematics

1 answer:

Anna007 [38]3 years ago

5 0

Answer:

- 6

Step-by-step explanation:

The average rate of change of f(x) in the closed interval [ a, b ] is

$\frac{f(b)-f(a)}{b-a}$

Here [ a, b ] = [ - 1, 4 ] , then

f(b) = f(4) = 4³ - 6(4)² - 4 = 64 - 96 - 4 = - 36

f(a) = f(- 1) = (- 1)³ - 6(- 1)² - (- 1) = - 1 - 6 + 1 = - 6 , then

average rate of change = $\frac{-36-(-6)}{4-(-1)}$ = $\frac{-36+6}{4+1}$ = $\frac{-30}{5}$ = - 6

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