Year 13/A2 Pure Chapter 2.2 (Functions)

Here in 2.2 we introduce the concepts of the 𝐝𝐨𝐦𝐚𝐢𝐧 and 𝐫𝐚𝐧𝐠𝐞.

This lesson is meant as preparation for Exercise 2B, page 30 of the Pearson Edexcel Pure Mathematics Year 2/A2 Textbook.

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Introduction: 00:00
Solution to Warm-Up Q1: 0:51
Solution to Warm-Up Q2: 3:03
Solution to Warm-Up Q3: 6:16
Solution to Warm-Up Q4: 11:46

FUNCTIONS AND MAPPINGS

Introduction: 14:24
Examples (Deducing the range): 18:09
Making functions by restricting the domain (or range): 22:18

Worked Example 1: 26:30
Worked Example 2: 29:53
Worked Example 3: 34:06

Suggested Exercises: 38:56