Question

Optimization problem: "A farmer has 140 ft of fencing with which she will enclose a rectangular region adjacent to a barn 60 ft long. If she insists on using the entire length of the barn as a portion of one side of the rectangle, what is the maximum area that may be enclosed?'

Answer 1

ok so your constraint is 2l+2w = 140+60
note we have 140 to use and 60 already there
and our function is f(x) = l*w

Answer 2

@kissy do you understand?

Answer 3

Kind of

Answer 4

x + 60 = side of rectangle that includes the barn.

y = opposite side of rectangle.

z = the length of one of the two other sides.

w = area to be maximized.

Answer 5

What I don't understand is the w=yz and the y=x+z part