Question

The graph of the function f(x) = (x-3)(x + 1) is shown.

-10-8-6
q
10-

Which describes all of the values for which the graph is
positive and decreasing?
all real values of x where x < -1
all real values of x where x < 1
all real values of x where 1 O all real values of x where x > 3

Answer 1

x < -1

Explanation:

Draw a parabola (the graph) passing trough two x-intercepts -1 and 3 and open up.