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# Advanced Math/finding a rule

Question
a have a table
x=1,2,3
y=1,8,27
i need to find what the 6th number for y.
How do i do it?

Note that the y values are cubes:
y₁ = 1 = 1³
y₂ = 8 = 2³
y₃ = 27 = 3³
The general rule is y = x³

The x values are an arithmetic series with a starting value of 1 and incremental value of 1, so
x₆ = 6
y₆ = 6³ = 216

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