7 th grade math
posted by noah .
What is the rule for this function?
input 1 output 3
input 2 output 5
Input 4 output 9
Input 5 output 11
Input 10 output 21
Input 12 output 25
Please help now thanks

It is like adding

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+9 then7

y (output)
x(input)
y=2x+1 
EWT

A phone call cost $3 minute
Imput (x) rule output(y)
1
5
10
20 
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if the input is 3 and the output is 24 then what is the rule?

3×8

About to kms
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