There exists a continuous function defined for all real numbers that is concave up and always negative. True False can conclude the stock's price is increasing. cannot determine whether the stock's price is increasing or decreasing. can conclude the stock's price is decreasing. f(x) is a continuous function, and its second derivative is positive for all real numbers, except at x=a. True or False. f might have an absolute maximum at x=a. True False There exists a continuous function defined for all real numbers that is concave up and always negative. True False can conclude the stock's price is increasing. cannot determine whether the stock's price is increasing or decreasing. can conclude the stock's price is decreasing. f(x) is a continuous function, and its second derivative is positive for all real numbers, except at x=a. True or False. f might have an absolute maximum at x=a. True False