Question

how do you find the axis of symmetry on a graph? look for the vertex, it will be a vertical line through that point. it will then be written as x = #. look for the vertex, it will be a horizontal line through that point. it will then be written as y = #.

Explanation:

For a parabola (a common graph), the axis of symmetry is a vertical line passing through the vertex. The equation of a vertical line is of the form x = a constant value.

Answer:

A. Look for the vertex, it will be a vertical line through that point. It will then be written as x = #.