Which of the following functions is graphed below? -6
410-
-15
-20
x2 +3, > 4
1x+4.54
x2 +3, x< 4
B. Y -
| X+4, x2 4
[x2 + 3. x 2 4
C. Y-
(x+4.*< 4
(x2 + 3, 54
D. Y -
1x+4, >4

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.