Question

Write a function rule for the area of a rectangle?

Write a function rule for the area of a rectangle whose length is 6 ft more than its width. What is the area of the rectangle when its width is 11 ​ft?

Answer 1

`w(w+6)=A`
`187` square ft

Explanation:

I'll use `w` to represent the width. Since the length is `6` more than the width `w`, the length is equal to `w+6`. The area of a rectangle is length multiplied by width, so the area (`A`) of the rectangle can be represented as `w(w+6)=A`

Plug `11` in for the width and evaluate:

`11(11+6)=A`

`11(17)=A`

`A=187`