Question

How do you evaluate the function `f(x)=3x-7` for `f(-1)`?

Answer 1

`f(-1)=-10`

Explanation:

`f(-1)=3x-7`

Substitute `-1` for `x`.

`f(-1)=3(-1)-7=`

`f(-1)=-3-7=`

`f(-1)=-10`

graph{y=3x-7 [-9.97, 10.03, -12.48, -2.48]}