Case study·Hard exam skill (4/5)·No calculatorNeeds mentor review
Difficulty guide
The label describes the problem, not your ability.
1/5 - Foundational
Warm-up setup; checks one basic idea.
2/5 - Routine exam skill
Normal syllabus skill; usually one main rule or interpretation.
3/5 - Standard multi-step
Exam-style problem with multiple steps or a common trap.
4/5 - Hard exam skill
High-end exam problem; combines methods carefully.
5/5 - Challenge
Stretch problem beyond normal exam pressure.
Question
A circular garden has centre and radius A straight path meets the boundary at
Total: 4 marks
(a) Write the equation of the circular boundary. (1 mark)
(b) Verify that lies on the circle. (1 mark)
(c) Find the other point on the circle with the same -coordinate as . (2 marks)
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