General: Population The population of a city x years from now is predicted to be million...

General: Population The population of a city x years from now is predicted to be million people for 1 ≤x ≤ 5. Find when the population will be growing at the rate of a quarter of a million people per year. [Hint: On a graphing calculator, enter the given population function in y₁, use NDERIV to define y₂ to be the derivative of y₁, and graph both on the window [1, 5] by [0, 3]. Then TRACE along y₂ to find the x-coordinate (rounded to the nearest tenth of a unit) at which the y-coordinate is 0.25. You may have to ZOOM IN to find the correct x-value.]