Question

A rectangle's length is 4 feet more than its width. Write a quadratic function that expresses the rectangle's area in terms of its width. O A. A(W) =w+4 O B. A(W) = 12 - 41 O c. A(x) = li O D. A(W) = 12+ 450

Answer 1

A rectangle's length is 4 feet more than its width. Write a quadratic function that expresses the rectangle's area in terms of its width

Remember that

The area of a rectangle is

A=L*W

we have

L=W+4

substitute in the expression of the area

A(w)=(w+4)*w

A(w)=w^2+4w

the answer is option D