# What is the range if f(x) = 3x - 9 and domain: -4,-3,0,1,8?

##### 2 Answers

Jul 24, 2018

#### Explanation:

#"to obtain the range substitute the given values in the "#

#"domain into "f(x)#

#f(-4)=-12-9=-21#

#f(-3)=-9-9=-18#

#f(0)=-9#

#f(1)=3-9=-6#

#f(8)=24-9=15#

#"range is "y in{-21,-18,-9,-6,15}#

Jul 24, 2018

Range =

#### Explanation:

Here we have a lineal function

The slope of

Since

and

The other values of

Hence the range of