Paper 1 · Functions and Graphs
⏱ Tested in 5 exam questions since 2023
Lesson 1 of 10
Functions and Graphs 1: JC Revision
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- State what makes a rule a function: every input has exactly one output
- Check mapping diagrams by counting arrows and graphs with the broken vertical line test
- Use domain, range and codomain vocabulary correctly
- Explain why tan x is a function once ±90° are excluded from the domain
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