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What is a Function?

This section defines a function. Paper 1 Functions and Graphs is about 35 marks; start here with the test a marker uses before any sketch or f(x)f(x) algebra: each input xx maps to exactly one output yy…

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What will I learn in "What is a Function?"?

This section covers What is a Function? as part of Functions and graphs in Grade 12 Mathematics. You'll find clear explanations, worked examples, and key definitions aligned to the CAPS curriculum.

Is this section aligned with the CAPS curriculum?

Yes. All notes on Hlayiso, including "What is a Function?", are written against the official CAPS curriculum and ATP for Grade 12 Mathematics.

What should I study after "What is a Function?"?

Continue with the next section in Functions and graphs, or test your understanding with the interactive quiz linked to this section.

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