Is there a moderator here that can help me with a question real quick please?

Explain why the function is discontinuous at the given number a. (select all that apply.) f(x) = 1 x + 1 a = −1 f(−1) is undefined. lim x→−1+ f(x) and lim x→−1− f(x) exist, but are not equal. lim x→−1 f(x) does not exist. f(−1) and lim x→−1 f(x) exist, but are not equal. none of the above

Need on this geometry question. explain how you did it.

If (x-2) 2= 49, then x could be a. -9 b. -7 c.- 2 d. 5 e.9