An old bone contains 80% of its original carbon-
14. Use the half-life model to find the age of the
bone. Find an equation equivalent

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

Ineed if you could explain and give me the answer you! this needs done

100 points, hi, i’m not sure how to get the equation from the graph and table.