Sketch out utility =30 and utility =60 indifference curves for each of the following utility functions. In each case describe the type of preferences that appear to be represented by each utility function: a. U(x,y)=2∗x+y b. U(x,y)=10+x+y c. U(x,y)=3 ∗
x ∗
y d. U(x,y)= Minimum (3 ∗
x,y)