I posted a problem last week with this same picture and got some great help- many thanks ahead of time!

http://i13.photobucket.com/albums/a2.../mathprblm.jpg

Find the perimeter function in terms of x if the area function is A(x)= 28 sq. ft.

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- September 30th 2009, 07:46 PMkittykat616Area/Perimeter Function Problem
I posted a problem last week with this same picture and got some great help- many thanks ahead of time!

http://i13.photobucket.com/albums/a2.../mathprblm.jpg

Find the perimeter function in terms of x if the area function is A(x)= 28 sq. ft. - September 30th 2009, 08:12 PMArturo_026
So, i guess your area is

P(x) = pi*x + 2y + 2x

now substitute A(x) for 28

and get your answer in terms of x

I hope I'm right. - September 30th 2009, 08:28 PMkittykat616
Would the area be 2xy + 1/2pi * (x)^2??

- September 30th 2009, 08:30 PMArturo_026
- September 30th 2009, 08:34 PMkittykat616
Alright. So would the peimeter be (2x+2y)+ Pi (x)? Then put the area function every where there is x??

- September 30th 2009, 08:41 PMArturo_026
I misunderstood your question in the first post, sorry.

Yes, with the perimeter function find the value of y in terms of x and then substitute that in the area function. - September 30th 2009, 08:47 PMkittykat616
So, the value of y in terms of x would be

x=2y + 1/2pi(x) , right?

Sorry for so many questions!