I believe there is a typo here. It should probably read y = 2x+8.Equation____for____ Domain

1) y=2x=8 ____for____0< x < 2

means less than or equal to. You can remember which side of it is larger because the small end is next to the smaller number and the big end is next to the bigger number.

The domain usually is the bit that tells you to which values of x the equation applies to. In this case you seem to have restrictions on y as well, this should not be called a domain.

What you need to do is graph each equation for the values specified in the domain column. for example, the third part looks like this: