alleryStart learning →Marginal cost is MC = 2x + 5. The extra cost of raising output from 2 to 4 units is
A22
B36
C14
D18
Answer & Solution
Correct answer: A. 22
The integral of 2x + 5 from 2 to 4 is [x^2 + 5x] = 36 - 14 = 22.
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