Can somebody help me and explain?

Answer:
You plug is any value for X and put the equation into y equals form. Then you solve the problem to figure out what Y would be.
Example work for this question:
x+y=-4
(x, y)
(2, y)
x+y=-4
y=-4-x
y=-4-2
y=-6
(x, y)
(2, -6)
You should plug in any number for x at least three times to find out the graph of each line. I hope this helps! Good luck!
Step-by-step explanation: