Professor Goodheart gives $3$ midterm exams. He drops the lowest score and gives each student her average score on the other two exams. Polly Sigh is taking his course and has a $60$ on her first exam. Let x$2$ be her score on the second exam and x$3$ be her score on the third exam. If we draw her indifference curves for scores on the second and third exams with x$2$ represented by the horizontal axis and x$3$ represented by the vertical axis, explain how you determine the shape of her indifference curve through the point $($x$2,$x$3)=(50,70)$ and display in a plot. In your graph, label the numerical values of important points that characterize the indifference curve.

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The indifference curve through 5070 will generally Slope downwards Reflecting the trade... View the full answer