The nth term rule of the linear sequence is 7n - 1.
This is an arithmetic progression and the formula used for the calculation will be:
Tn = a + (n - 1)d
where,
a = first term = 6.
n = number of terms
d = common difference = 13 - 6 = 7
Therefore, we'll slot the values into the equation. This will be:
Tn = a + (n - 1)d
= 6 + (n - 1)7
= 6 + 7n - 7
= 7n - 1
Therefore, the nth term will be 7n - 1.
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