lazy way: try the points to see whether they fit.
algebraic way. Plug in the values for x and y to get
9a-3b+c = -22
a-b+c = 2
9a+3b+c = 2
Either way, it's -2,4,8
Find the values of a, b, and c such that the equation y=ax^2+bx+c has ordered pair solutions (-3,-22), (-1,2) and (3,2)
a = 2; b = 8; d = 4
a = -2; b = 4; c = 8
a = 2; b = 4; c = 8
a = -2; b = 8; c = 4
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