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4) For each of the following utility functions derive directly from the definition not using the formula(s) from class or the text - the MRS (marginal rate of substitution) of y for x at the points (1, 1) and (2,4 (a) ua(x, y)-y (b) us(x, y) x + 2y (c) uc (z, y) = 3x + y

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Answer #1

(a) Slope (f) Slope of%-1.= MRs. -y2_MRs cc)-, 8lope of c-3,-MRS

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