The last one because for every functoin pair their is exactly one output value fo the function pair.
-2: y = -2-2 = -4
-1: y= -1 - 2 = -3
0: y = 0 - 2 = -2
1: y = 1 - 2 = -1
2: y = 2 - 2 = 0
Not sure what the question is here but if I had to choose it would be the the red thing because that computer looks like it would lag like hell plus it probably has some old lady games on it
1/3 it went up one and to the right 3. it is also a positive slope