<span>c^2 ⋅ c^9
= c^11
------------------------------</span>
The first step to getting this in vertex form would be to put this in proper standard form. This is so that you can split the middle term which is a step of completing the square.
Uh you just put your work in the calculator
Count the dots plotted here. There are four of them, right? What are the x-coordinates of those four dots: Answer: {-1, 0, 1, 2}.
Reject answers B and C because none of the four dots have x-coordinate -3.
Reject answer A because this set would not include x=-1 or x=2.
The answer is 1 and 1/4 or 1.25