The function gives the area of a rectangle, in square feet (), if its width is and its length is times its width. Which of the following is the best interpretation of ?
If the width of the rectangle is , then the area of the rectangle is .
If the width of the rectangle is , then the length of the rectangle is .
If the width of the rectangle is , then the length of the rectangle is .
If the width of the rectangle is , then the area of the rectangle is .