Answer:
y=-6
Step-by-step explanation:
First, find the slope of the two coordinates using the slope formula:
Slope formula: y2-y1/x2-x1
Plug the numbers into the formula and solve:
-6--6/-9-3 = 0
Now,use the slope and one of the coordinates to put the line in point-slope form
Point slope: y-y1=m(x-x1)
y+6=0(x-3)
Simplify
y+6=0-0
y=-6
