The maximum height of the baseball. Hope this helped :)
Answer:
B) 
Step-by-step explanation:
3x + 1 = x - 1
-3x - 3x
___________
1 = −2x - 1
+1 + 1
_________
2 = −2x
_ ___
−2 −2
[Plug this back into both equations above to get the y-coordinate of -2]; 
I am joyous to assist you anytime.
Draw from (3, -1.5) to (-2, 6)
5.75, 5.751, 59/10, 5 10/11 pls mark brainliest if it helped