In everyday reality, a consumer does not only consume one kind of goods [productsi but various kinds of goods [products]. Marginal Utility analyzes the combinations of goods it and goods '1' whether each item provides the same level of satisfaction or not. Utility is denoted by U. The first derivative of U with respect to X is the Marginal Utility with respect to good it. The first derivative of U to 'f is the Marginal Utility of good 1*. 1. Marginal Utility {MU}: about; A consumer's satisfaction by consuming goods it and goods if is: U = v*2.y*3. Total consumer in come is 1ooo rupiah. The price of): and the price oftIr per unit are 25 rupiah and 50 rupiah. a1 Determine the utility function for each item In} what is the marginal utility if the consumer consumes 14 units of it and 13 units of: c] Explain whether by consuming 14 units of item it and 13 units of Item Y, consumer satisfaction is optimum or not