Arithmetic Sequence :

Question

Determine whether f(n) is an arithmetic sequence, circle yes or no . Identify the common difference .
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1. N 1 2 3 4 5
F(n). 2 4 6 8 10
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Answer 1

you can't look at the numbers 2,4,6,8,10 and see a common difference?

man, you gotta not be trying!