Question

I need to put these nine cards into three groups according to similarities I see... but I don't see any similarities! Please help

Answer 1

Here you go. This is how the teacher showed me how it is.

Answer 2

Have you learned slope yet? Pick two points from the graph and do x-y on the top and x-y on the bottom. That would give you your slope then you can graph it. For example (-2,-1) (-1,1)
-2-(-1)
-1-1
Then that would give you -1/-2 so technically -1/2<< this is what you graph