Answer:

Explanation:
Hello
we know this is a function of a line, use 2 points to find the equation
Step 1
find the slope of the line(m),using

where, Point 1(X1,Y1) and point 2 (Y2,Y2) are points of the line
Let
P1=(-6,-3)
P2(6,-7)
now, replace

Step 2
use P1 and m to find the slope-point equation

Let P1(-6,-3)
m=-1/3
now, replace

Have a great day