Palo alto college is planning to construct a rectangular parking lot on land bordered on one side by a highway. the plan is to use 520 feet of fencing to fence off the other three sides. what dimensions should the lot have if the enclosed area is to be a maximum?

step-by-step explanation:

for exempl this   system of equations   y = x - 3

                                                                y = 2x - 5

look   the line : y = x -3     ( red)

                            the line : y = 2x -5 ( bleus)