Question

Determine the vertex form of g(x) = x2 + 2x - 1. Which graph represents g(x)? 5) Intro

Answer 1

$g(x) = x ^{2} + 2x - 1 = {x}^{2} + 2x - 1 + 2 - 2 = \\ = (x + 1) {}^{2} - 2$