Sketch the graph of f and determine where f is nondifferentiable. 5x if x

Sketch the graph of f and determine where f is nondifferentiable. 5 if x? 1 Where is the function f(x) nondifferentiable? Select the correct choice below and, if necessary, fill in the answer box to complete your choice. O A. The function f(x) is differentiable for all real numbers. O B. The function f(x) is nondifferentiable at x=