Question

Which statement correctly explains the chart?



The opportunity cost of producing one soccer net is eight soccer balls.
The opportunity cost of producing two soccer nets is two soccer balls.
The opportunity cost of producing two soccer balls is one soccer net.
The opportunity cost of producing four soccer balls is three soccer nets.

Answer 1

I can’t tell which statement is correct without seeing the chart. Please upload the chart or give the production combinations (numbers of soccer balls and soccer nets at the points on the PPC).

How to check each statement once I have the chart:
- Opportunity cost of producing X soccer nets = number of soccer balls you must give up to move from one production point to another that increases nets by X. Compute the change in soccer balls ÷ change in nets.
- Opportunity cost of producing X soccer balls = number of soccer nets you must give up to increase ball output by X. Compute the change in nets ÷ change in balls.

Example checks you can do when you have two points (balls, nets):
- If moving from (12 balls, 4 nets) to (4 balls, 5 nets): nets increase by 1, balls fall by 8 → opportunity cost of 1 net = 8 balls (matches statement 1).
- If moving from (12 balls, 4 nets) to (10 balls, 6 nets): nets increase by 2, balls fall by 2 → opportunity cost of 2 nets = 2 balls (matches statement 2).
- If moving from (12 balls, 4 nets) to (6 balls, 5 nets): balls increase by 6, nets fall by 1 → opportunity cost of 2 balls = 1/6 net (not statement 3).

Send the chart or the coordinate pairs and I’ll identify which statement is correct.