who can help me with functions? question will be posted below

Question

anonymous · Answer

please help!

anonymous · Answer

To recognize limits, just look at what value y is taking on as x approaches the value under the limit sign.  Some of the questions ask for right and left side limits so x+ is "from the right" and x- is "from the left".

anonymous · Answer

i get that part, but i dont know how to find the numbers. i did it once and it did not work

anonymous · Answer

Scan for the x's left to right.  Scan for the y's vertically.  Any more than that is just giving you the answer.

anonymous · Answer

can you just help me witht eh first one and i think i will be able to get it from there. i know that it starts at -inf.