Mathematics A-Level
Quadratic inequalities and critical values
What Quadratic inequalities and critical values means in Mathematics A-Level, as defined for Pearson Edexcel.
Definition of Quadratic inequalities and critical values
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Reference: Pearson Edexcel
Solved by finding the critical values where the expression equals zero, then testing intervals or sketching the parabola; for a > 0, greater than lies outside the roots and less than lies between them.
Topics that use Quadratic inequalities and critical values
- 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 Quadratic inequalities and critical values in the exam
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