Problem
Arturo is going to build a dog run using one side of his house and 100 feet of fencing. His design has an area that can be modeled by a = 100x – 7x2.
How many square feet will it have?
Solution
For this case we have the following function given:
[tex]A=100x-7x^2[/tex]For this case we can solve this problem if we find the maximum of the function so we can create a graph and we got:
For this case is possible to see that the maximum is 357 so then the best answer would be:
357 square feet
