Business Mathematics

15

Straight Line

LEARNING OBJECTIVES

The paramatric equation of a line

• The cartesian equation of a line

• Slope of a line

• Angle between two intersecting lines

• Intersection of two lines

• The slope-point equation

• The equation of having slope m and intrecept of y-axis is c

• The equation of the form (P − a) of a line

INTRODUCTION

Paramatric and cartesian equation of a line

A (x_p y_x) and B [x₂, y₂) where A ≠ B are given points

1. Cartesian equation of

   If x₁ ≠ x₂, y_l ≠ y₂ then the cartesian equation of AB is

   

2. Paramatric equations of is

   x = tx₂ + (1 ...