Write the equation in standard form. Then identify the vertex of the parabola.y = x2 + 6x - 7

A. y = (x + 3)2 - 16; (-3, -16)
B. y = (x - 3)2 - 7; (-3, -7)
C. y = (x + 3)2 - 9; (-3, -9)
D. y = (x + 3)2 - 16; (3, -16)


Answer: A

Mathematics

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