The cost of fixing errors in a computer program is related to the time spent developing the program by the equation y = 4x - 2,000x + 8,000, where x = the
time in hours and y = the cost in dollars. Which best describes the meaning of the
vertex of the parabola with that equation?
The cost reaches a maximum when 500 hours are spent developing the program.
The cost reaches a minimum when 500 hours are spent developing the program.
The cost reaches a minimum when 250 hours are spent developing the program.
The cost reaches a maximum when 250 hours are spent developing the program.