How would you solve these?In question one the black and blue functions scale is by 2's, and the red is by 5's. Question 2 the scale is by 2's. Question 3 the scales are by 2's.

For each of the following questions use the equations and graphs of the function, its first derivative and its second derivative to determine: a. the points of inflection; b. intervals of concavity. 1. The graphs of the function f(x) = x - 6x2+ 9x, its first derivative f'(x) = 3x2-12x +9, and its second derivative f"(x) = 6x - 12 are shown. y = 1 (x) y =1(x ) y = 1 " ( xx ) 2. The graphs of the function g(x) = -x3 + 3x2- 2, its first derivative g'(x) and its second derivative g"(x) are shown. y = g(xx ) y = g'0x y = 9"(x) 3. The graphs of the function h(x) = -_x4+2x2+-, its first derivative h', and its second derivative h" are shown. y - h ( x ) - h(x) y = h-(x )