Solve the problem.
-Suppose that f(x) = -x - 9 and g(x) = x - 12. (a) Solve f(x) = 0.
(b) Solve g(x) = 0.
(c) Solve f(x) = g(x).
A) (a) x = -9; (b) x = -12; (c) x = 1.5
B) (a) x = 9; (b) x = 12; (c) x = 1.5
C) (a) x = -9; (b) x = 12; (c) x = 1.5
D) (a) x = -9; (b) x = 12; (c) x = -10.5

Question

Quizplus · Accepted Answer

(a) Setting f(x) = 0 gives -x - 9 = 0, solving for x gives x = -9. (b) Setting g(x) = 0 gives x - 12 = 0, solving for x gives x = 12. (c) Setting f(x) = g(x) gives -x - 9 = x - 12, solving for x gives x = 1.5.

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