and got it?
No, because I don't even know how to start finding limits. I have seen them written this way, but I don't know what it means. I don't care if you solve my particular problem, but if you could just show me some kind of example I could follow, it would be very helpful!
means "the limit as x tends to -1 from the left of ..."
means "the limit as x tends to -1 from the right of ..."
so when it asks , you say, okay, i am coming from the left of -1, that means, i want the function as it is defined for x < -1, because those are the values to the left of -1. now i look at my function and realize that for x < -1, the function is 2 - x
so i want
this function is continuous, so you can just plug in -1 to find the limit.
a similar story holds true for the other one-sided limit