Question

The graph of the function f(x) = –(x + 6)(x + 2) is shown below.

Answer 1

Expand
f(x)=-x²-8x-12
take derivitive
f'(x)=-2x-8
zero at x=-4

in x<-4, the derivitive is positive so the function is increasing
in x>-4, the derivitive is negative so the function is decreasing


increasing in (-infinity,-4)
decreasing in (-4,infinity)



first option

Answer 2

Yep it's the first option