coastermaster221 coastermaster221

12-04-2017
Mathematics

contestada

If F(x) = 4x - 1 and G(x) = x^2 + 7, what is G(F(x))?

A. 16x^2 - 8x + 8

B. 16x^2 + 8

C. 4x^3 - 7

D. 4x^3 + 28x - 7

Respuesta :

12-04-2017

Substitute in f(x) every time you see an x value in g(x)
Hence, g(f(x)) = (4x - 1)^2 + 7
= 16x^2 - 8x + 1 + 7
= 16x^2 - 8x + 8 (ie A)

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kthtgurll86 kthtgurll86

12-04-2017

c is the answer because 4 squared is 16 and negative 1 plus 7 is 8

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