Graph the system by using technology. what is the y-coordinate of the solution?
round to the nearest hundredth.
4x-y=2
2x+9=-12

Take second equation here, 
2x + 9 = -12
2x = -12 - 9
2x = -21
Multiply by 2, 
4x = -42

Now, substitute the vaue of 4x in 1st equation, 
-42 - y = 2
-y = 2 + 42
y = -44

In short, Your Answer would be -44

Hope this helps!

Igotchu on that if you still need it

Im pretty sure it would be 6 purple rectangles.