For the given functions f and g, find the requested function and state its domain. Write the domain in interval notation.f(x) = 9x - 2; g(x) = 5x - 4;
Find f ? g.
A. (f ? g)(x) = 14x2 - 46x - 6; (-?, ?)
B. (f ? g)(x) = 45x2 - 14x + 8; (-?, 8) ? (8, ?)
C. (f ? g)(x) = 45x2 + 8; (-?, 8) ? (8, ?)
D. (f ? g)(x) = 45x2 - 46x + 8; (-?, ?)
Answer: D
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