Question

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

Explanation:

Step1: Identify parabola roots

The parabola crosses the x-axis at $x=0$ and $x=6$.

Step2: Calculate midpoint of roots

The axis of symmetry is the midpoint of the roots:
$\frac{0 + 6}{2} = 3$

Answer:

$x=3$