Economics? please help!

Economics? please help!



Professor Goodheart's colleague Dr. Kremepu gives 3 midterm exams. He drops the lowest and gives each student her average score on the other two exams. Polly Sigh is taking his course and has a 60 on her rst exam. Let x2 be her score on the second exam and x3 be her score on the third exam. If we draw her indi erence curves for scores on the second and third exams with x2 represented by the horizontal axis and x3 represented by the vertical axis, then her indi erence curve through the point (x2;x3) = (50;70) is: 
(a) L-shaped with a kink where x2 = x3. 
(b) three line segments, one vertical, one horizontal, and one running from (70;60) to (60;70). 
(c) a straight line, running from (0;120) to (120;0). 
(d) three line segments, one vertical, one horizontal, and one running from (70;50) to (50;70). 
(e) a V-shaped curve with its point at (50;70). 

anyone has the idea doing this?I already know the answer, please give me full working steps





No Answers Posted Yet.