Question 790130
A rectangle has perimeter 88 inches. Express the area of the rectangle as a function,
A(x), of the length x of one of its sides
***
let x=length of rectangle
let y=length of width
2x+2y=88
2y=88-2x
y=(88-2x)/2=44-x
..
Area,A(x)=x*y=x(44-x)=88-x^2