Explain GRAPHICALLY why indifference curves cannot cross. Suppose the utility function is u(x,y)= x^1/2 + 4y^1/2
a) What is the marginal utility of x ?
b) What is the marginal utility of y ? C) What is the marginal rate of substitution? d) Is this utility homothetic? e) If the price ratio is 2 , and the optimal amount of x (based on their income) for this person is 10 , how much y will they consume?