Consider the function: f(x) = −x2 + 2x + 8

1)
Graph the quadratic function to identify the interval where the function is positive.
A) 0 < x < 4
B) −2 < x < 1
C) −2 < x < 4
D) −∞ < x < 1
2)
Graph the quadratic function to identify the interval where the function is increasing.
A) 0 < x < 4
B) −2 < x < 1
C) −2 < x < 4
D) −∞ < x < 1