Final answer:
To find the axis of symmetry from the vertex form of a quadratic equation, use the formula x = -b/2a. The x-coordinate of the vertex represents the axis of symmetry.
Step-by-step explanation:
To find the axis of symmetry from the vertex form of a quadratic equation, you can use the formula x = -b/2a. In the vertex form, the equation is expressed as y = a(x-h)^2 + k, where (h,k) represents the coordinates of the vertex. The axis of symmetry is a vertical line that passes through the vertex, so the x-coordinate of the vertex represents the axis of symmetry.