This document discusses representing functions graphically and introduces the vertical line test. It focuses on graphical representation of functions and how the vertical line test is used to determine if a relation is a function or not by ensuring that each x-value has only one y-value.

1. FUNCTIONS A Lecture By Abdul Ghaffar Khan

2. 4.3 Graphical representation of function

3. 4.3 Graphical representation of function

4. 4.3 Graphical representation of function

5. Example 21

6. Vertical line test

7. Vertical line test

8. Vertical line test

9. Vertical line test

10. Vertical line test