The graph of the function f(x) = –(x + 6)(x + 2) is shown below.
Which statement about the function is true?
a) The function is increasing for all real values of x where
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.