Given the piecewise function f(x) defined as: f(x)={2x1forx<344x-x2 for x3a. Provide an accurate sketch of the graph in the space below.(3 pts)b. Based on the visual evidence of the graph, give a sentence or two to explain why the graph is non-differentiable at the point x=3.(2 pts)c. Use the Alternate Definition of Derivative (see page 105 in the text if you are unsure what definition I am referencing) to prove that the function given below is non-differentlable at the point x=3.(5 pts)