SOLUTION: find the rule input: 1, 2, 3, 4 output: 2, 8, 14, 20

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Question 487935: find the rule
input: 1, 2, 3, 4
output: 2, 8, 14, 20
Answer by chessace(471) About Me  (Show Source):
You can put this solution on YOUR website!
Note that the difference of 1 in input makes difference of 6 in output.
Slope is 6, find y intercept by subtracting that from x=1 value: 2-6.
f(x) = 6x -4