Posted by **Peter** on Tuesday, March 2, 2010 at 2:22pm.

The manager of a 100 unit apartment complex knows from experience that all units will be occupied if the rent is $500 per month. A market survey suggests that, on average, one additional unit will remain vacant for each $10 increase in rent. What rent should the manager charge to maximize revenue?

- Calculus -
**bobpursley**, Tuesday, March 2, 2010 at 3:35pm
Income= rent(100-1/10*(rent-500)

d I/drent= (100-rent/10+50)-rent(1/10)=0

150=2/10 rent

rent= 750

check that

- Calculus -
**bobpursley**, Tuesday, March 2, 2010 at 3:41pm
checking : assume 750 rent, 760 rent, and 740 rent

rent units income

750 75 56,250

740 76 56,240

760 74 56240

calculus is awesome

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