Question

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

Explanation:

Step1: Identify vertex x-coordinate

The axis of symmetry of a parabola is the vertical line passing through its vertex. From the graph, the vertex is at $x=2$.

Step2: Write axis equation

The equation of a vertical line is $x = a$, where $a$ is the x-coordinate of the vertex.

Answer:

$x=2$