Help me pls and show me how to solve it pls

Me figure out the process to determine x you appreciate it : )

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

Describe the symmetry of the figure. identify lines of symmetry, if any. find the angle and the order of any rotational symmetry.