Question

How do you find the range of `f(x)=3x+2` given the domain D={-2, 0, 2}?

Answer 1

If your Domain is a finite set of discrete values, the Range is the finite set of discrete values obtained by applying the function to the values of the Domain

`f(x) = 3x+2`

Domain `={-2,0,2}`

Range `={f(-2),f(0),f(2)}`
`= {-4,2,8}`