The sides of a square all have a side length of y. . Write a simplified area function in terms of y for a rectangle whose length is twice the side length of the square and whose width is 2 units longer than the side length of the square.
The area of a rectangle is given by the formula A = length x width.
Given that the length of the rectangle is twice the side length of the square (2y) and the width is 2 units longer than the side length of the square (y + 2), the area function can be simplified as:
A = (2y)(y + 2)
A = 2y^2 + 4y