## Algebra 1: Common Core (15th Edition)

x=-$\frac{b}{2a}$ gives the axis of symmetry.You are given a=2,b=4,c=-5.Substitute in order to solve: x=-$\frac{b}{2a}$ x=-$\frac{4}{2(2)}$=-$\frac{4}{4}$=-1 The answer is A since x=-1