Answer:
i think its a
Step-by-step explanation:
(sry if im wrong)
The quadratic formula is...

your a will be in front of your x^2, b in front of your x, and c will be the number without an x. Plug those into the equation and you'll get two answers. That will be it
X=80, y=140,z=20
I hope it helps
Answer:
While the slider moves to the right the point change also. You can see that the points will decrease and increase again.