What is the rule of the mapping

(1, 2), (2, 4), (3, 8), (4, 16), (5, 32).

2 answers

Please I need a help.
rewrite
(1, 2), (2, 4), (3, 8), (4, 16), (5, 32)
as
(1,2^2) , (2, 2^2) , (3, 2^3), (4, 2^4), and sure enough (5, 2^5)
so what do you think you need for (x , ???)