Question

look at this graph:
graph of a parabola opening upwards with vertex at (0,0)
what is the equation of the axis of symmetry?
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Explanation:

Step1: Identify parabola vertex

The vertex of the parabola is at $(0,0)$.

Step2: Find axis of symmetry

For a vertical parabola, the axis of symmetry is the vertical line through the vertex, which has the form $x = h$ where $h$ is the x-coordinate of the vertex.

Answer:

$x=0$