maths functions guide for grade 12
he range. Key Points: The domain is the set of all possible inputs. The range is the set of all possible outputs. Notation: If \(f\) is a function, then for an input \(x\), the output is \(f(x)\). Examples of Functions \(f(x) = 2x + 3\) \(g(x) = x^2\) \(h(x) = \frac{1}{x}\) (with \