CAIE IGCSE Additional Mathematics 4.5 Solving Cubic Inequalities Graphically
Practise reading cubic intersections and sign regions to solve inequalities or determine numbers of real roots.
- Syllabus
- 2028–2030
- Course
- Additional Mathematics 0606
Exam points
- read all boundary x-values where the cubic meets the comparison line
- select graph regions above or below the line to form the solution intervals
- use local maximum and minimum values to identify parameters giving three distinct roots
4.5. Solve cubic inequalities graphically question 1
[Maximum number: 2]
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