GCSE MATHS REVISION
NOTES
Foundation & higher | exam focused
What You Need to Know
Sequences are about finding the pattern.
Key Rules
Formula :
Linear sequences have a constant difference
nth term = an + b
Worked Example
A simple worked example illustrating the key concepts.
Question: 2, 5, 8, 11…Find the nth term
Solution: the difference between terms is 3, that’s the number in front of n. The difference between
n and first term is -1 = answer = 3n - 1
© Bright Sparks Tutoring – GCSE Maths Revision Notes – Personal Use Only
Step-by-Step Method
NOTES
Foundation & higher | exam focused
What You Need to Know
Sequences are about finding the pattern.
Key Rules
Formula :
Linear sequences have a constant difference
nth term = an + b
Worked Example
A simple worked example illustrating the key concepts.
Question: 2, 5, 8, 11…Find the nth term
Solution: the difference between terms is 3, that’s the number in front of n. The difference between
n and first term is -1 = answer = 3n - 1
© Bright Sparks Tutoring – GCSE Maths Revision Notes – Personal Use Only
Step-by-Step Method
