1st Year Math Chapter 2 Exercise 2.1 Notes

Complete concept notes, formulas, and solved examples for ICS/FSc Part 1 Mathematics, Punjab Board (PECTAA), Single National Curriculum 2026-27 session. Chapter 2, Functions and Graphs, follows Complex Numbers in the 14-unit Mathematics 11 (PECTAA) textbook. Exercise 2.1 introduces the formal definition of a function, along with domain, range, function notation, and the vertical line test….