SOLUTION: x-y 1-1 2-? 4-7 7-13 what is the missing y axis?

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Question 411338: x-y
1-1
2-?
4-7
7-13
what is the missing y axis?
Answer by shree840(260) About Me  (Show Source):
You can put this solution on YOUR website!
1-1
1-3
4-7
7-14
y=2x-1