Other options are concave up, concave down and inflection point

f' (x) - - 0 + 0 - - - -1 0 2 3 - 0 + + + 0 + + + -1 2 CO - Based on this information, we know that: At x = 0 , the function f(x ) is [ Select ] and [ Select [ Select ] flat increasing decreasing At x - 1 , the function f(x) is [Select ] V and [ Select ] At x = 3 , the function f(x ) is [Select ] and [ Select ]