Let be a differentiable function whose derivative is for all real

MATHEMATICS · Subjective · AP · Calculus AB · Analytical Applications of Differentiation · Analytical Applications of Differentiation

Problem

Let

f

be a differentiable function whose derivative is

f'(x)=(x-3)(x+1)

for all real

x

. a) Find the interval(s) on which

f

is strictly increasing. b) Find the interval(s) on which

f

is strictly decreasing.