What you need to know
Check yourself against these “I can” statements.
- I can use function notation, like f(x) = 3x + 1
- I can find composite functions, like fg(x), and solve equations with them
- I can find the inverse of a function
- I can solve equations like f⁻¹(x) = 2
Practise this topic
2 resources🔤 Fill the Gaps
Fill the Gaps: Maths Vocabulary
A sentence explaining one of the unit’s key words, with gaps. Pick the right word for each gap from the words scattered round it: the right ones and plenty of wrong ones. A deck for every unit.
🧮 ToolGraph Plotter
A graphing calculator: type y = f(x), x = g(y), implicit relations such as x² + y² = 25, inequalities (shaded, dashed for < and solid for ≤), parametric and polar curves, points and tables, functions f(x) = … with f′(x), and…
These are the pages for Functions in the GCSE scheme of work, following Pearson Edexcel GCSE (9–1) Mathematics, Higher tier (1MA1). Open this topic in Mr Wells Maths to see it alongside the rest of the course.