Answer: Your answer is B. (1,1) and (2, -1).
Step-by-step explanation: So if you look at the graph, and you look at point Q which is (-1,2), it goes up 2 from the Y axis and over 1 so that would give you 2 over 1. Now, if you look down at point R, (1,-2), it goes over 2 and down 1.
I hope this explains the question.