Changing 
"inverts" the orientation of the x axis, so the graph of f(x) is transformed by reflecting it about the y axis.
All of them except B and C. Probabilities must add to 1 and none of the p's can be negative
Y is 72 because it is 180-108=y
I think it is not possible to find a certain equation from just a given points, it must have more given information because there is a lot of parabola pass throw (-1,1).
