Question

look at this graph: what is the equation of the axis of symmetry?

Explanation:

Step1: Identify the axis - symmetric property

For a parabola opening horizontally, the axis of symmetry is a vertical line passing through the vertex.

Step2: Locate the vertex

The vertex of the given parabola is at the origin (0,0).

Step3: Write the equation of the axis of symmetry

The equation of a vertical line passing through (0,0) is $x = 0$.

Answer:

$x = 0$