Lesson #3
Equations of Lines
Quote of the Day:
"Analytic Geometry immortalized the name of Descartes, and constitutes the greatest single
step ever made in the progress of the exact sciences." -- John Stuart Mill"
Objectives:
The student will review definitions of slope and angle of
inclination.
The student will determine the equation of a line given appropriate
information.
The student will determine if two lines are parallel or perpendicular.
The student will determine the slope and angle of inclination of
a line from the equation of a line.
The student will determine the x- and y-intercepts of a line.
The student will graph the equation of a line.
The student will determine the length of a line segment using
the distance formula.
The student will determine the coordinates of the midpoint of a
segment.
The student will determine the equation of a circle.
1. Collect Homework Assignment.
2. Quiz on Trig
3. Slope
4. Equations of Lines
Examples:
Determine the equation of a line which passes through the points
(2, -3)
and (-3, 5).
Determine the slope and y-intercept of
x + 3y = 5.
5. Midpoint Formula, Distance Formula, and Circles
Click here for Midpoint Song
Click here for The Distance Formula Song
6. Linear Invaders Game
7. Assignment:
Slope, Parallel & Perpendcular Lines, Angle of Inclination
Equation of a line
p. A14 (68, 69, 70, 71)
Work on Mini Exam Review Sheets.
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