Please help, I do not understand.

Consider the production possibilities frontier (PPF) that shows the trade-off between the production of cotton and the production of soybeans depicted in the gure to the right. a. Show the effect that improved fertilizers would have on the initial production possibilities frontier. Use the three-point curved line drawing tool to show the effect on the initial production possibilities frontier. Label this curve 'PPF2.' b. Suppose genetic modication makes soybeans resistant to insects, allowing yields to double. Use the three-point curved line drawing tool to show the effect of this technological change on the initial production possibilities frontier. Label this curve 'PPF3.' Carefully follow the instructions above, and only draw the required objects. Quantity of cotton PPF1 Quantity of soybeans 9,0