Question

Let `f(x)= -4x + 7` and `g(x)= 10x-6`. What is `f(g(x))`?

Answer 1

To find `f(g(x))` we substitute `g(x)` for `(x)` in the expression for `f(x)`:

`f(g(x)=-4(10x-6)+7=-40x+24+7`

Therefore `f(g(x))=-40x+31`