Mathematics A-Level
Linear inequalities and sign reversal
What Linear inequalities and sign reversal means in Mathematics A-Level, as defined for Pearson Edexcel.
Definition of Linear inequalities and sign reversal
Check what you remember
Read the wording for your board, then hide it and explain Linear inequalities and sign reversal in your own words. Rough notes are fine. This is a self-check, with no mark or grade.
Reference: Pearson Edexcel
Solved like an equation, but multiplying or dividing by a negative number reverses the inequality sign; brackets are expanded first and fractions cleared by multiplying by the positive lowest common denominator.
Topics that use Linear inequalities and sign reversal
- Algebra and functions (Pearson Edexcel A-Level)
Related terms
- Algebraic division by linear expressions
- Amplitude
- Asymptote
- Comparing coefficients
- Completing the square
- Composite function
- Conjugate
- Discriminant
Using Linear inequalities and sign reversal 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.
Start free
All Mathematics A-Level termsA week of Premium from your first lesson · Then the free plan continues · No card, no charge