Determine the values of x, if any, at which the function is discontinuous. At each number where f is discontinuous, state the condition(s) for continuity that are violated. (Select all that apply.) x2 - 1 if x # -1 f ( x ) = x+1 1 if x = -1 X The function f is discontinuous at x = -1 because f is not defined at x = -1. The function f is discontinuous at x = -1 because lim f(x) does not exist. - -1 The function f is discontinuous at x = -1 because lim f(x) exists, but this limit is not equal to f(-1). X- -1 O The function f is continuous everywhere because the three conditions for continuity are satisfied for all values of x