Can someone explain how to graph this? I know how to graph it in the y= format. So can someone explain how to get these equations into a y= format? Please and Thank you!

Answer:
hope this helps.
Step-by-step explanation:
You don't really need to get them in the y format.
make a table and plug some numbers in and graph those points
use a ruler to connect the dots.
y = -3 is a horizontal line