Graph is correct, but misleading. Description is as follows:
The big points are just examples while there is an infinite amount of choices.A production-possibility frontier is an example of a Pareto-efficient frontier, where the frontier and the area left and below it is a continuous room of choices. The red points are examples of Pareto-optimal choices of production. Points off the frontier, such as N and K, are not Pareto-efficient.
Okey!Thank you for clarification!
Look at this italian grand prix circuit here