1.2 Lines in the Plane

By the end of your studying, you should know:
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ExamplesLet L_{1} be the line ax + by = c, where a, b, and c are constants. What is the equation of the line perpendicular to L_{1}, passing through the point (0, c)?Find the equation of a line through (1, 1) perpendicular to a line passing through (1, 2) and (3, 5). Consider a triangle with vertices (1, 1), (9, 7), and (3, 11). Do the perpendicular bisectors of the sides of the triangle intersect in a single point?
VideosSee short videos of worked problems for this section.
QuizExercisesSee Exercises for 1.2 Lines in the Plane (PDF).Work online to solve the exercises for this section, or for any other section of the textbook. 
Resources on the WebInformation on NewtonBiographical data from St. Andrew's University's Web site Excerpt from W.W. Rouse Ball's "A Short Account of the History of Mathematics"
Information on Leibniz
Calculus Applications
Plane Division by Lines

1.1 Modeling Discrete Data  Table of Contents  1.3 Functions and Their Graphs 
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Copyright © 2005 Donald L. Kreider, C. Dwight Lahr, Susan J. Diesel