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Which equation is y=9x^2+9x-1 re-written in vertex form
4 months ago
Q:
Which equation is y=9x^2+9x-1 re-written in vertex form
Accepted Solution
A:
Answer:A. y = 9(x +1/2)^2 - 13/4.Step-by-step explanation: y = 9x^2 + 9x - 1y = 9(x^2 + x) - 1y = 9 [ (x + 1/2)^2 - 1/4] - 1y = 9 (x + 1/2)^2 - 9/4 - 1y = 9(x +1/2)^2 - 13/4.