I need help with calc/trig!!!?

Question

Ok I have to graph (which I can do) and analyze the following functions.

I kind of know how to do find HA, VA, and Holes but for a graded assignment I don't want to be wrong. Can anyone help me with these.

1. y= {x²-1, x≤0

{2x, x>0

I need a vertical/horizontal asymptote (if any) holes (if any) and i need the domain.

2. f(x)= sin2x/x

same as above HA,VA,Holes, Domain

3. f(x)=x+2/(x+2)²

same as above HA, VA, Holes, Domain

thank you in advance!

Answer 1

I got:

1>  no v or h asymptotes, no holes, domain is all real #s

2>  no asymptotes,  x=0, domain = all real

3>  asymptotes at x= -2, no holes, domain = all real