Question

Evaluate f (x) =2x-8 over the domain {0, 1, 3, 8} What is the range of f (x) ?

Answer 1

{-8,-6.-2,8}

Explanation:

we have

`f(x)=2x-8`

Evaluate f(x) for different values of x

For
`x=0` ----->
`f(0)=2(0)-8=-8`

For
`x=1` ----->
`f(1)=2(1)-8=-6`

For
`x=3` ----->
`f(3)=2(3)-8=-2`

For
`x=8` ----->
`f(8)=2(8)-8=8`

therefore

The range is equal to

{-8,-6.-2,8}