Multiple Choice: Which of the following statements must be true of the function f(x) defined below? Homework Help ✎
f(x) is continuous at x = −2.
f(x) is differentiable at x = −2.
f(x) is differentiable at x = 0.5 .
I and III only
II and III only
I and II only
Therefore f is continuous at x = –2.
Therefore f is not differentiable at x = –2.