1. Mr. Rodriguez wants to section off a rectangular garden in the middle of his backyard. He has 160 feet of fencing to use. To find the greatest area that he could enclose, Mr. Rodriguez wrote and graphed the area function, f(x) as shown below, where x is the length, in feet, of one side of the garden, and f(x) is the area of the rectangular garden. What are the dimensions of the garden that will give Mr. Rodriguez the greatest area for his garden?​