i am stuck on the following problem. here is a pic of the problem

http://imgur.com/QXimbwS

any help would be appreciated

Rent = 600+10x

Occupancy = 120-x

(600+10x)(120-x)= 72000+600x-10x^{2}

Maximize ownerâ€™s income is to maximize

72000+600x-10x^{2}

Equating the derivative to zero

600-20x=0

20x =600

x =30

Income = (600+300)(120-30) =900 *90 =81000

rent = 600+10*30 =600+300=900

Secure Information

Content will be erased after question is completed.

Enter the email address associated with your account, and we will email you a link to reset your password.

Forgot your password?

Sign Up