Can you help me, please

3. Graph a typical indifference curve for the following utility functions. Do they have convex indifference curves (i.e., whether the MRS declines as x increases). a. U(x,y) = 3x + y 13- U(X,y) = Qty)\" C. U(x,y) = x\";1 + y d. May) =(x2y2)\"2 e. U(x,y) = & X+y