The width of a rectangle is y feet long. The rectangle is 4 feet longer than it is wide. What is the area of the rectangle?

Question

Which expression represents the area?

a. y(y + 4) sq ft

b. y + 4 sq ft

c. 4y sq ft

Answer 1

Width of the rectangle is y

Since the length is 4 more than the width, it can be written as y+4

Area of a rectangle is Length x Width

Area = (y+4)x(y).

Since the order doesn't matter when multiplying, Area can also be written as (y)x(y+4) or simply y(y+4)