To determine the number of products that need to be sold to achieve the maximum profit per product sold, you would typically look for the vertex of a parabola if the profit per product sold is represented by a quadratic function. If the graph is not provided here, I cannot provide a specific number.
However, in a general context, you would reach the maximum profit per product sold either by:
- Analyzing the vertex in a given quadratic equation if you have the mathematical representation.
- Observing the peak point on a graph if you have one.
If you can provide specific values or details about the graph, I can help you find the number of products to sell for maximum profit per product. Otherwise, please refer to the graph to identify the maximum point.