-4 -3 1 2 3 -1 -2 Co (a) Estimate the coordinates of the relative maxima, relative minima, or horizontal points of inflection by observing the graph. (If an answer does not exist, enter DNE.) relative maxima ( x, y ) = -1,5 relative minima ( x, y ) = 1,1 horizontal points of inflection ( x, y ) = 1,1 (b) Use y' = f'(x) to find the critical values. (Enter your answers as a comma-separated list.) X : (c) Find the critical points. (Order your answers from smallest to largest x, then from smallest to largest y.) ( x, y ) = ( x, y ) = Need Help? Read It