For the given functions f and g, find the requested function and state its domain.f(x) = x + 3; g(x) = 7x2Find f + g.
A. (f + g)(x) = 7x2 + x + 3; (-?, ?)
B. (f + g)(x) = -7x2 + x + 3; (-?, ?)
C. (f + g)(x) = 7x2 + x + 3; (-?, -3) ? (-3, ?)
D. (f + g)(x) = 7x2 - x - 3; (-?, ?)
Answer: A
Mathematics
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