Page 128 - Algebra

Exercise
1.Which of the following is the graph of f(x) = –x2 + 10x –21?
e) None of the above
2. Find the minima or maxima of f(x) = –x2 + 5x –12?
−21 a) Maxima = 4
e) Minima = 4
3. Find the minima or maxima of f(x) = x2 + 10x + 20?
a) Maxima = 5 c) Minima = -5 e) Minima = 5
4. Find the minima or maxima point of f(x) = x2 + 2x + 9?
a) Minima (–8, 1) c) Maxima (1, 8) e) Minima (–1, 8)
c) Maxima = 21 −23
b) Minima = 21
−23 d) Maxima = 4
b) Maxima = -5 d) Minima = -4
b) Maxima (8, 1) d) Maxima (–1, –8)
Page 127 of 177
Algebra I & II