The graph of the function f(x)=-(x+6)(x+2) is shown below. What statement about the function is true ? A.) the function is incre

Question

The graph of the function f(x)=-(x+6)(x+2) is shown below. What statement about the function is true ?

A.) the function is increasing for all real values of x
x < -4.
B.) the function is increasing for all real values of x where
-6 < x < -2.
C.) the function is decreasing for all real values of x where
x < -6 and where x > -2.
D.) the function is decreasing for all real values of x where
x < -4.

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Diễm Thu 3 years 2021-09-05T15:42:59+00:00 1 Answers 57 views 0

Answers ( )

  1. nguyetanh
    0
    2021-09-05T15:44:20+00:00
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    Answer:

    A

    Step-by-step explanation:

    in x<-4 the derivative is positive so the function is increasing.

    in x>-4 the derivative is negative so the function is decreasing

    increasing in (-infinity,-4)

    decreasing in (-4,infinity)

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