Question 92190This question is from textbook
: Indicate whether the graphs of the following will have a maximum or a minimum. please help me
(a) f (x) = x^2 - 9 a.____________
(b) f (x) = 8x - 3x^2 b.____________
(c) f (x) = -(3 - x )^2 c.____________ This question is from textbook