A firm is producing two goods (X and Y)that are related in consumption.The demand function for X is: $$Q _ { d } = 120 - 4 P _ { x } - 10 P _ { y }$$ In order to maximize profit,the firm
A)should determine jointly the levels of output for the two goods.
B)should treat the price of Y as given when determining the optimal production of good X.
C)should choose the levels of output for goods X and Y at which total marginal revenue equals total marginal cost.
D)both a and b
E)both a and c

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The Answer of A firm is producing two goods (X and Y)that are related in consumption.The demand function for X is: $$Q _ { d } = 120 - 4 P _ { x } - 10 P _ { y }$$ In order to maximize profit,the firm
A)should determine jointly the levels of output for the two goods.
B)should treat the price of Y as given when determining the optimal production of good X.
C)should choose the levels of output for goods X and Y at which total marginal revenue equals total marginal cost.
D)both a and b
E)both a and c

A Firm Is Producing Two Goods (X and Y)that Are Qd=120−4Px−10PyQ _ { d } = 120 - 4 P _ { x } - 10 P _ { y }Qd​=120−4Px​−10Py​

A Firm Is Producing Two Goods (X and Y)that Are $Q _ { d } = 120 - 4 P _ { x } - 10 P _ { y }$