SOLUTION: I need help finding the reasonable domain. It says that the perimeter is 40m. It also says: A=20w-w^2 where w is width. What I thought it would be was {w>0} because you can'

Algebra ->  Functions -> SOLUTION: I need help finding the reasonable domain. It says that the perimeter is 40m. It also says: A=20w-w^2 where w is width. What I thought it would be was {w>0} because you can'      Log On


   



Question 302877: I need help finding the reasonable domain.
It says that the perimeter is 40m.
It also says: A=20w-w^2 where w is width.
What I thought it would be was {w>0} because you can't have a negative area but I am not sure.

Answer by Alexandra Mack (1) About Me  (Show Source):