1. Y = x^2+3x-10.
Y = a(x-h)^2 + k.
h = Xv = -b/2a = -3/2.
k = (-3/2)^2 + 3(-3/2) - 10 = -49/4.
Y = 1(X+3/2)^2 - 49/4.
2. Y = x^2 - 9x.
Y = a(X-h)^2 + k.
h = Xv = -b/2a = 9/2.
k = (9/2)^2- 9(9/2) = -81/4.
V(h,k) = (9/2,-81/4).
Y = 1(X-9/2)^2 - 81/4.
8. Y = (x-3)^2 + 1.
Y = x^2 _ 6x + 9 + 1.
Y = X^2 - 6x + 10.
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