Question

Which statement about the function is true?

The graph of the function f(x) = (x – 4)(x + 1) is shown
below.
The function is increasing for all real values of x where
x<0.
The function is increasing for all real values of x where
x < -1 and where x > 4.
The function is decreasing for all real values of x where
-1 The function is decreasing for all real values of x where
x < 1.5.
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Answer 1

The function is increasing for all real values of x where x < -1 and where x > 4

Explanation:

The function is "not" increasing for all real values of x where x<0, when

-1 < x < 0