Question

Given f(x) = 3x - 1 and g(x)= -x + 6, find f(-2) + g(5).
A. -6
B. 6
C. 8

Answer 1

A. -6

Explanation:

`f(x)=3x-1\\\\`

In order to find
`f(-2)` we will plugin
`x=-2`

`f(-2) = 3(-2)-1\\f(-2)=(3*(-2))-1\\f(-2)=-6-1`

`f(-2)=-7`

`g(x)=-x+6`

In order to find
`g(5)` we will plugin
`x=5`

`g(5)=-5+6`

`g(5)=1`

`f(-2)+g(5)\\=-7+1\\=-6`

∴
`f(-2)+g(5)=-6`