Determine the vertex, axis of symmetry, zeros, and y-intercept of the parabola shown in the graph above. The vertex is at (give as coordinate pair) Axis of s

Question

I don't understand the vertex

Answer 1

Of course, the graph does not show in your question.

However, for the parabola in standard form, the vertex occurs where x = -B/2A and that is also the axis of symmetry.

You may not have the parabola in standard form, but a rotation of axes will probably be able to transform it to that form.