Switch row 2 and row 3:
2 answers:
You might be interested in
For the limit approaching 3 from the right, you want to follow the line to the right of x = 3. From the graph you're describing it sounds like that's y = -3. 
The RHS limit is -3 even though f(3) = 7
The RHS limit is -3 even though f(3) = 7