Given the equation f (x) = 2x² + 4x - 1, what is axis of symmetry? a. 1 c. - 1 b. 2 d. 0

Answer: x=-1

Step-by-step explanation:

the x value of the vertex = - b/2a if the equation is in "ax^2+bx+c" for

you are in luck

x value of the vertex = - 4/4 = - 1

the line of symmetry is a vertical line, and since it must pass through the vertex

line of symmetry: x=-1