Part of the graph of the function f(x) = (x - 1)(x + 7) is
shown below.
Which statements about the function are true? Select
three options.
The vertex of the function is at (-4,-15).
The vertex of the function is at (-3,-16).
6
4
The graph is increasing on the interval x > -3.
The graph is positive only on the intervals where x <-7
and where
x>1.
2+
A++
-8 -6 -4 -2
-2
4
х
N
The graph is negative on the interval x < -4.
-4
-6