Question

Algebra 2

Let f(x) = -4x + 7 and g(x) = 10x - 6. Find f(g(x)). (1 point)


-40x + 24

-40x + 31

-40x + 64

-40x + 70

Answer 1

-40x + 31 ( Its option B).

Explanation:

Do find f(g(x)) we substitute the formula for g(x) for the x in the formula for f(x)

f(x) = -4x + 7 so

f(g(x)) = - 4(10x - 6) + 7

= -40x + 24 + 7

= -40x + 31 answer