If f (x) = x2 and g (x) = 3x + 1, which expression represents g (f (x)) ?

A) 3x^3 + x2

B) 3x^2 + 1

C) 9x^3 + 6x2 + x

D) 9x^2 + 6x + 1

E) 9x^2 + 1

Question

Guest

2 April, 05:24

+3

Answers (1)

Know the Answer?

Rhett Maynard · Answer 1

F (x) = x²

g (x) = 3x+1

g (f (x)) = g (x²) = 3x²+1 - we just put x² instead of x

ans.: B

Regards, M. Y.

If f (x) = x2 and g (x) = 3x + 1, which expression represents g (f (x)) ?A) 3x^3 + x2B) 3x^2 + 1C) 9x^3 + 6x2 + xD) 9x^2 + 6x + 1E) 9x^2 + 1