Beth has 3500 feet of fencing available to enclose a rectangular field. One side of the field lies along a river, so only three sides require fencing. Express the area A of the rectangle as a function of x, where x is the length of the side parallel to the river.

A(x)=

Question

Beth has 3500 feet of fencing available to enclose a rectangular field. One side of the field lies along a river, so only three sides require fencing. Express the area A of the rectangle as a function of x, where x is the length of the side parallel to the river.

A(x)=

myininaya · Answer

3500=2x+y
y=3500-2x
A=xy=x(3500-2x)
or
is it
3500=2y+x
y=(3500-x)/2
A=xy=x(3500-x)/2

myininaya · Answer

oh wait they say x is parallel to the river so its the 2nd one

myininaya · Answer

A=x(3500-x)/2

anonymous · Answer

thanks!

anonymous · Answer

just to clarify, that a duck in the bottom of my river.

myininaya · Answer

lol cute

anonymous · Answer

i know right? his name is charles.