Sequences (OCR GCSE Maths): Flashcards

A set of numbers that follows a specific rule

A sequence where each term is found by adding a fixed number to the previous term

A sequence where each term is found by multiplying the previous term by a fixed number

Each number is the sum of the two previous numbers

$an+b$

The common difference

A constant that adjusts the sequence

$6n+7$

$4n-24$

$-5n+26$

Substitute $n=100$ into the formula

The second difference is constant

$an^2+bn+c$

Identify square numbers, determine what to add/subtract

$n^2-3$