Question

If `f(x) = 4x-3` and `g(x) = 2x^2-3x`, what is `f(-4)` and `g(-2)`?

Answer 1

`g(-2)=+14`

`f(-4)= -19`

Explanation:

If `f(x)=4x-3`

`"then "f(-4)" " =" " 4(-4)-3`

`=" "-19`

'~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

if `g(x)=2x^2-3x`

`"then "g(-2)" "=" "2(-2)^2-3(-2)`

`=8+6 = 14`