To identify the vertex on the graph, we typically look for the highest or lowest point depending on whether the parabola opens upwards or downwards. Since there is no image provided, I can't see the graph you're referencing.
However, if you have a parabola and the options include points and x-values, here's how you can determine the vertex:
- If the parabola opens upwards, the vertex is the lowest point.
- If the parabola opens downwards, the vertex is the highest point.
If your graph shows a point where the curve turns (the peak or the trough), that would be the vertex.
Based on the answer choices you provided, the vertex would typically be one of the coordinates. If you want help identifying the vertex, please describe the graph or provide more context!