Part of the graph of the function f(x) = (x - 1)(x + 7) is shown below.
6
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).
The graph is increasing on the interval x > -3.
The graph is positive only on the intervals where x <-
7 and where
X > 1.
4
2+
-86 42
2
4
x
-2
The graph is negative on the interval x < 4.
-4
-6