SOLUTION: How can I tell whether or not something is a linear function? For example, here's a chart: n 1 2 3 4 5 f(n) 8 15 22 29 36 Is this a linear function?

SOLUTION: How can I tell whether or not something is a linear function? For example, here's a chart: n 1 2 3 4 5 f(n) 8 15 22 29 36 Is this a linear function?

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Question 496102: How can I tell whether or not something is a linear function? For example, here's a chart:
n 1 2 3 4 5
f(n) 8 15 22 29 36
Is this a linear function?
Answer by chessace(471) (Show Source): You can put this solution on YOUR website!
The ratio of x and y differences is the same:
In your example, the x differences in sequence are all 1, so it's linear if and only if the y differences are the same in sequence.
They are all 7, so yes is linear.

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