Sequences 2 (Edexcel GCSE Maths): Flashcards

Sequence where difference between consecutive terms stays the same

Linear sequence

Constant difference between consecutive terms in a sequence

$\text{Difference} \times n + \text{Zero term}$

The constant difference between consecutive terms

The term that would come before the 1st term

The position number of the term you want

Find what you add between consecutive terms

Work backwards from 1st term by subtracting the difference

Sub into formula, solve for $n$; check if $n$ is positive whole

The number is in the sequence

The number is not in the sequence

Yes, this is common and correct

Check by substituting $n = 1$ and $n = 2$