- The production possibility curve for peter to contact his friends via phone call vs weblog gives the combination of two ways to contact his friends with total remains constant.
- The trade-off between two ways " Pareto Optimality ". The maximum number of phone calls to contact his friends occurs when he "forgives" the method of weblog completely.
- This point on PPC is the intercept on the vertical axis ( Phone ). Read off the intercept on the "Phone" axis.
Let’s make an equation Let’s say x = amount of years after Smith = 8, mother = 42 3(8 + x) = 42 + x 24 + 3x = 42 + x 2x = 18, x = 9 Solution: after 9 years