Chapter Three:  
Parallel and Perpendicular Lines

Geometry   Notes

Chapter  3

Section  3.1
Section  3.2
Section  3.3
Section  3.4
Section  3.5
Section  3.6
Section  3.7

Geometry Contents

Take notes on the following topics.

Slope-intercept form (p. 152) The slope-intercept form of a linear equation is y = mx + b, where m is the slope of the line and b is the y-intercept.

Standard form of a linear equation (p. 153) The standard form of a linear equation is Ax + By = C, where A, B, and C are integers and A and B are not both zero.

Point-slope form (p. 154) The point-slope form for a nonvertical line with slope m and through point (x₁, y₁) is y − y₁ = m(x − x₁).