All you have to do is draw two circles then make lines in the circles so that you have 8 pieces, do that twice.
Range = y
domain = x
just substitute in the numbers for x to get your y
You'll need to isolate 9a on the left side of this equation
Please add 7 to both sides of the eqn, obtaining 9a = 117.
Solve for a by dividing both sides by 9: a = 117/9 = 13 (answer)
