Lines
FIU has online movies to help with this topic on this page. You must have QuickTime Player, a free download, installed on your computer.
For a slower progression through the concept of lines, you may watch the following movies on this page.
Graphing a line given both intercepts is movie 3.6
Graphing a line given an equation of the form y = mx + b is movie 3.7
Graphing a line given an equation of the form ax + by + c = 0 is movie 3.8
Graphing a line given a point and the slope is movie 3.9
Graphing horizontal and vertical lines is movie 3.10
Finding the slope and y-intercept of a line given its equation is movie 3.11
Writing the equation of a line given the slope and the y-intercept is movie 3.13
Writing the equation of a line given the slope and a point is movie 3.14
Writing the equation of the line given two points is movie 3.15
Writing the equations of vertical and horizontal lines through a given point is movie 3.16
The University of Idaho provides
another online resource. These lectures
are only viewable by those with DSL or cable modems.
Real Player, a free
download, is required to see these videos.
The videos cover the topics below. To see
the videos, go to this
page and look under section 2.3.
Slope of a line and the point-slope
equation of a line
Equations of horizontal and vertical
lines
The equation of a line in slope-intercept form
The equation of a line in general form
More online help:
Interpreting slope and y-intercepts
Finding the equation of a line