Invariant
What Invariant means in Mathematics GCSE, as defined for Pearson Edexcel.
Definition of Invariant
Check what you remember
Read the wording for your board, then hide it and explain Invariant in your own words. Rough notes are fine. This is a self-check, with no mark or grade.
Reference: Pearson Edexcel
A quantity or expression that stays unchanged as other values change.
Topics that use Invariant
- Ratio, proportion and rates of change (Pearson Edexcel GCSE)
Related terms
- Acceleration
- Applications of ratio in context
- area and volume units
- Asymptote
- average rate of change
- Average speed
- Chord
- comparing quantities
Using Invariant in the exam
Check the command word and mark scheme for your exact question. After comparing your explanation with the reference, use the term in an answer on the linked topic. This practice does not predict an exam mark.
Practise Mathematics questions
Create a free account to answer exam-style questions on this topic and get feedback on your answers.
A week of Premium from your first lesson · Then the free plan continues · No card, no charge