Graphing questions

[BraydenS27]

I'm doing my Geometry homework and a few of the questions have me stooped, so I was curious if anyone could help me with them and/or explain how they got the answers. Thanks in advance!

 

[R.M.]

For question 3, identify this symbol: ||
Now ask yourself what name you could give to the two angles in the problem. Then look at the notes you took or reread the section of your textbook that links those 2 concepts together.