Question

Explain why the function is discontinuous at the given number

Answer 1

left limit = 2 ≠ 1/2 = right limit

Explanation:

A function is discontinuous if the limit of the function value approaching the point from the left is different than the limit approaching from the right.

Here, the left limit is 2 and the right limit is 1/2. The limits are different, which is why the function is discontinuous at x=-1.