Increasing Decreasing Intervals Quadratic

For what intervals of x is f(x) positive?

• x≤-1

• x≥-1

• -3<x<1

• -3≤x≤1

What are the decreasing intervals?

What are the increasing intervals?

f(x) = 3x² + 5x - 9

• UP and UP

• DOWN and DOWN

• UP and DOWN

• DOWN and UP

f(x) = -3x² - 5x + 12

• UP and UP

• DOWN and DOWN

• UP and DOWN

• DOWN and UP

What is the end behavior?

• interval from A to B

• interval from B to C

• interval from C to D

• interval from D to E

• interval from A to B

• interval from B to C

• interval from C to D

• interval from D to E

• point A

• point B

• point C

• point D

• point E