Problema Solution
A builder is designing a rectangular parking lot. She has 300 feet of fencing to enclose the parking lot around three sides. Write a quadratic function in standard form that represents each area as function of the width.
Answer provided by our tutors
Let
x = the width of the parking lot
A = the area of the parking lot
the length of the parking lot is: 300 - 2x
area of a rectangle is width*length
A = w * l
A(x) = x * (300 - 2x)
A(x) = -2x^2 + 300x