Question

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

Explanation:

Step1: Identify parabola vertex

The vertex of the parabola is at $(0,1)$, which lies on the y-axis.

Step2: Define axis of symmetry

For a parabola, the axis of symmetry is the vertical line passing through its vertex. Since the vertex has an x-coordinate of 0, the line is $x=0$.

Answer:

$x=0$