Question

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

Explanation:

Step1: Identify parabola symmetry

A parabola's axis of symmetry is vertical, $x = h$, through its vertex.

Step2: Find vertex x-coordinate

The vertex is the lowest point, at $(0, -10)$. Its x-coordinate is 0.

Step3: Write axis equation

Axis of symmetry is $x = 0$.

Answer:

$x = 0$