MATSEC AM Pure Mathematics Complete Prep Course — Lesson 38: Functions, domain and range

Lesson 38 defines a function as a rule giving exactly one output per input, distinguishes domain from range, and covers the three notations MATSEC uses. It shows how to exclude zero denominators and negative square roots, test injectivity algebraically and by horizontal line, judge surjectivity against a stated codomain, find a quadratic range by completing the square, and recognise a bijection.

Lesson 38 of 158 in the MATSEC AM Pure Mathematics Complete Prep Course audio course from ExamPrepRise.

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