Question

sketch a graph of the continuous function f(x) with the given properties.
f(0) = f(6) = 0
f'(3) = f'(5)=0
f'(x) > 0 when x < 3, 3 < x < 5
f'(x) < 0 when x > 5
f"(x) < 0 when x < 3 or when x > 4
f"(x) > 0 when 3 < x < 4​