



 
Maggie, The problem is saying that one of the three triples of points, A., B., C. or D. are all on the line $y = 2x  1.$ Your challenge is to determine which triple. Let me try one. I am going to try A.
I don't need to check the third point because I am looking for the triple that has all its points on the line. Now you try B., C. and D. Penny  


Math Central is supported by the University of Regina and The Pacific Institute for the Mathematical Sciences. 