4 of these statements are accurate:
-f(x) increases at x<0
-f(x) increases at 0<x<1
-f(x) decreases at 1<x<3
-f(x) decreases at x>3
You can find these facts by checking out where the vertex is. Since the vertex (highest point) is at x = 1, we know it is increasing for all intervals before and decreasing for all numbers after.
