Transformations of Quadratic Functions Answers

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Which equation has a graph that is a parabola with a vertex at (–2, 0)?

y = –2x2

y = (x + 2)2

y = (x – 2)2

y = x2 – 2

What is the first step when rewriting y = 3x2 + 9x – 18 in the form y = a(x – h)2 + k?

3 must be factored from 3x2 + 9x

x must be factored from 3x2 + 9x

9 must be factored from 9x – 18

3 must be factored from 3x2 – 18

Which equation is y = 6x2 + 12x – 10 rewritten in vertex form?

y = 6(x + 1)2 – 11

y = 6(x + 1)2 – 10

y = 6(x + 1)2 – 4

y = 6(x + 1)2 – 16

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