Question

How do you find the range of `f(x) = -x+4` for the domain `{-3 , -2, -1, 1}`?

Answer 1

`{7,6,5,3}`

Explanation:

`"substitute the given values from the domain into "f(x)`

`f(color(red)(-3))=-(color(red)(-3))+4=3+4=7`

`f(color(red)(-2))=-(color(red)(-2))+4=2+4=6`

`f(color(red)(-1))=-(color(red)(-1))+4=1+4=5`

`f(color(red)(1))=-color(red)(1)+4=-1+4=3`

`rArr"range is " {7,6,5,3}`