SOLUTION: Given the following revenue and cost functions, find the x-value that makes revenue a maximum. {{{R(x) = 68x - 2x^2;}}}{{{ C(x) = 21x + 97}}} The answer is supposedly 17, but n

Question 1041311: Given the following revenue and cost functions, find the x-value that makes revenue a maximum.

The answer is supposedly 17, but no matter what I do I can't figure out how to get it?
Found 2 solutions by josgarithmetic, MathTherapy:
Answer by josgarithmetic(39617) (Show Source): You can put this solution on YOUR website!
The cost function is not involved in finding max x for the revenue function. You have two separate functions, R for revenue and C for cost.

Where is R a maximum value?
Between the zeros in the exact middle.

Zeros are at 0 and at 34. The maximum occurs exactly between these two values!
Answer by MathTherapy(10551) (Show Source): You can put this solution on YOUR website!

Given the following revenue and cost functions, find the x-value that makes revenue a maximum.

The answer is supposedly 17, but no matter what I do I can't figure out how to get it?

The revenue function is: , and the maximum revenue occurs at
That's all!
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