Page 132 - Algebra

15. A standard parabola with equation y = ax2 + bx + c passes through (0, –16), (1, –21), and (–1, –9). Find the line of symmetry.
a) x = 0 b) x = 1 c) x = –1 d) x = –3 e) x = 3
16. The function f(x) = x2 – 10 and g(x) = –x2 + 8 are shown in the graph below. The two graphs intersect at (p, q) and (–p, q). What is the value of q?
a) b = –3 b) b = –1 c) b = 1 d) x = –3 e) b = 4
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Algebra I & II