Episode 7 — 2D & 3D Trigonometry

Interval Notation

Learners will be able to:

• Identify the main difference between an equation and an inequality in terms of representing a range of values. • Explain how interval notation is used to represent a range of real numbers. • Describe the use of round brackets in interval notation, including their application for positive and negative infinity. • Apply the correct use of square brackets in interval notation to indicate inclusion of certain values in the solution. • Interpret the meaning of round brackets and square brackets in interval notation, including how they denote exclusion or inclusion of a value.