Locate the critical points and identify which critical points are stationary points. f(x) VP - 49 Enter your answers in increasing order. The critical point x = V a stationary point. The critical point x = a stationary point. The critical pointer = a stationary point.Suppose that the spread of a flu virus on a college campus is modeled by the function 2000 YO = 1 + 999p-0.9r where y() is the number of infected students at time / (in days, starting with / = 0). Use a graphing utility to estimate the day on which the virus is spreading most rapidly. Round your answer to one decimal place. The virus is spreading most rapidly on day