Page 129 - DMTH201_Basic Mathematics-1

Basic Mathematics – I Deepak Kumar, Lovely Professional University

Notes Unit 5: Equations of Straight Lines

CONTENTS
Objectives
Introduction

5.1 Distance between Two Points
5.2 Slope of a Line
5.2.1 Slope of a Line when Coordinates of any Two Points on the Line are given

5.2.2 Conditions for Parallelism and Perpendicularity of lines in terms of their
Slopes
5.2.3 Angle between Two Lines

5.2.4 Collinearity of Three Points
5.3 Various Forms of the Equation of a Line
5.3.1 Horizontal and Vertical Lines
5.3.2 Point-slope Form
5.3.3 Two-point Form

5.3.4 Slope-intercept Form
5.3.5 Intercept Form
5.3.6 Normal Form

5.4 General Equation of a Line
5.5 Distance of a Point From a Line
5.5.1 Distance between Two Parallel Lines
5.6 Summary
5.7 Keywords

5.8 Self Assessment
5.9 Review Qustions
5.10 Further Readings

Objectives

After studying this unit, you will be able to:
Explain the distance between two points
Discuss the slope of a line
Understand the various forms of equation of line

122 LOVELY PROFESSIONAL UNIVERSITY