2 Using the graph of f x and the definition of continuity a Is the function continuous at x 0 Why or why not b Is the function continuous at x 2 Why or why not c Is the function continuous at x 6 Why or why not f x N 20 3 Consider the function f x X x 6 a Does the Intermediate Value Theorem guarantee a root zero of the function on the interval 0 8 Why or why not b Does the Intermediate Value Theorem guarantee a root zero of the function on the interval 4 0 Why or why not