Question

Can someone explain how to do this problem step by step?

Answer 1

removable discontinuity problem .. the limit can be taken as if the point exists where it should, which is 6. so the limit as x approach 3 from the left is 6. Choice (1)

Answer 2

does the clear dot and solid dot affect this answer because isn't when there is a clear dot on the graph its undefined and when its a solid dot it isn't?