U = x0.5y
(a)
When U = 4, following (x, y) bundles will yield an utility of 4:
(x, y) = (1, 4), (4, 2), (16, 1) and (64, 0.5).
(b)
(c)
MUx = U/x = (0.5y) / (x0.5)
MUy = U/y = x0.5
(d)
Holding y constant, as x increases, (x0.5) increases, so MUx decreases, indicating diminishing MUx.
The MUx curve is as follows.
NOTE: As per Answering Policy, 1st 4 parts are answered.
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