The slope of Friday and Kwame's budget lines can be obtained by examining the given information;
1. Friday is willing to trade 2 fish for 1 coconut, this means that Friday's budget slope is;
[tex]\frac{1}{2}\text{ coconut/fish}[/tex]We can also obtain this slope directly from the budget line by relating changes in coconut with fish;
[tex]\frac{10-0}{20-0}=\frac{1}{2}\text{ coconut/fit}[/tex]2. Kwame is willing to trade 3 fish for 1 coconut, this means that Kwame's budget slope is;
[tex]\frac{1}{3}\text{ coconut/fish}[/tex]We can also obtain this slope directly from the budget line by relating changes in coconut with fish;
[tex]\frac{10-0}{30-0}=\frac{1}{3}\text{ coconut/fish}[/tex]