X y
-2 -9
1 3
4 15
7 27

Step-by-step explanation:

Required:

Determine the equation of the linear function

First, we need to determine the slope (m) as follows:

Where

Substitute these values in

The equation is then calculated using:

This gives:

Make y the subject

-4

step-by-step explanation:

do 6-10=

if u need it to be negative.