How do you convert y x2 4x - 7 into vertex form?

Answer 1

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Answer 2

The vertex form: y = a(x - h)2 + k where (h, k) is the vertex.

y = x2 + 4x + 7 add and subtract 4 to the right side to complete the square

y = x2 + 4x + 4 - 4 + 7 form the square

y = (x + 2)2 + 3 write + 2 = -(-2)

y = [x - (-2)]2 + 3

Thus, the vertex is (-2, 3)