Introduction
Functions are of fundamental importance in mathematics, describing relationships between inputs and outputs through a rule of correspondence. Understanding key concepts such as domain, co-domain and range is essential for analyzing different types of functions, including one-to-one, onto and bijective functions. Graphical representation helps in identifying intersecting points, such as where a linear function meets the coordinate axes, where two linear functions intersect or where a linear and a quadratic function cross. These intersections provide valuable insights into solving equations visually. Additionally, exploring square root and cube root function graphs allows for a deeper understanding of their unique properties and behaviour. This unit will enhance problem-solving skills by combining algebraic and graphical approaches to functions.