$th Grade Math input output tables
posted by Sam .
Input x 2
Output y 9
how do you get 9?

Input x 2
Output y 9
how do you get 9? 
Multiply by 4 and add 1, or add 7..we need more numbers to know for sure

Thanks Jen tis is what I show
Input X 1 2 4 5 6 8 9
OutPut Y 7 9 13 _ _ _ _ 
13 , 19, 27

Help me on input and output
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