Which of the following statements best explains why this graph represents a relation that is not a function?

-The y-values between 1 and 2 are each paired with multiple x-values.
-The x-values between 1 and 3 are each paired with multiple y-values.
-The graph does not pass through the origin.
-The graph extends forever to both the left and the right.

The answer is: a = about 63.59ft2 for 15

So the first thing we do is to multiply the top equation by 3. the reason i want to do this is i notice there will be a 6y on both equations and can possibly add/subtract them. so we get 6y = -3x + 27. adding that and the second equation we get 6x = 27-15 which is 12. divide by 6 and we get 2. ∴ x = 2. substituting 2 into the first equation we get 2y = -2 + 9 which is 7. divide by 2 and we get 7/2. ∴ y = 7/2, x = 2.