Suppose that y f x is a differentiable function for which the following information is know f 2 1 f 2 1 5 f 2 0 25 Answer the following questions a Is f increasing or decreasing at z 2 increasing decreasing b Is f concave up or concave down at x 2 concave up concave down c Do you expect f 2 1 to be greater than 1 equal to 1 or less than 1 greater than 1 O equal to 1 less than 1 d Explain your reasoning in your answer to c