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Determine the vertex form of g(x) = x2 + 2x – 1. Which graph represents g(x)?

User Jainil
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2 Answers

3 votes

g(x) = x² + 2x - 1

Since its a parabola we have the formula to the vertex

(Xv, Yv) = (-b/2a, -Δ/4a)

(Xv, Yv) = (-2/2.1, -(2² -4.1.(-1))/4.1)

(Xv, Yv) = (-1, -2)

User Zorik
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6 votes

Answer:

the answer is D

Explanation:

just got it right on E2020

User Joshua Burgner
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