could you please help me with this question?

4.- Assume that your preferences for good x and y are given by the following indifference curve: y = (U - Vac)2 a) (1 Point) Provide an example of a bundle that is indifferent to the bundle (x = 4, y = 4).b) (2 Points) Between the bundles (w = 9, y = 4) and (w = 5, y = 5), which one do you prefer? Why? c) (3 Points) Assume that py = 4, and that your income is $100. Further, you know that the M RS = @. Mathematically derive the optimal consumption of :v