Question

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

Explanation:

Step1: Identify vertex x-coordinate

The vertex (lowest point) of the parabola is at $x=3$.

Step2: Axis of symmetry formula

For a parabola, the axis of symmetry is the vertical line through the vertex, given by $x = h$ where $h$ is the vertex's x-coordinate.

Answer:

$x=3$