Write a function rule for the area of a rectangle whose length is 5 ft more than its width. What is the area of the rectangle when its width is 11 ft?

Question

Write a function rule for the area of a rectangle whose length is 5 ft more than its width. What is the area of the rectangle when its width is 11 ​ft?
Write a function for the area A of the rectangle using the independent variable width W.

Damon · Answer

A = L w but L = w+5 so A = (w+5)w = w^2 + 5 w if w = 11 A = 11^2 + 5(11) = 121+55 = 176

Write a function rule for the area of a rectangle whose length is 5 ft more than its width. What is the area of the rectangle when its width is 11 ​ft?

Write a function rule for the area of a rectangle whose length is 5 ft more than its width. What is the area of the rectangle when its width is 11 ft?