The document discusses using the slope-intercept method to graph lines. It explains that the slope-intercept method involves finding a point on the line, such as the y-intercept, and using the slope to find another point. It then works through examples of graphing lines using this method, showing how to identify the slope and y-intercept from equations in slope-intercept form or standard form.
2. We have looked at 2 ways to graph
lines
1. Table of Values
2. Intercepts
Today we are going to put slope to
work.
3. This is called the Slope-Intercept
or Slope Point method.
First thing you need is a point on
the line, either one will be given or
use the y-intercept. Then use the
slope (rise/run) to find another
point.
4. Graph y = 4x -2 using the slope intercept
method.
slope = 4/1
y-intercept = (0,-2)
5. Graph 3y + 4x + 9 = 0 using the
slope -intercept method.
First step is to convert to the
slope-intercept form y = mx + b
3y = -4x - 9
3y = -4x - 9
3 3 3
y = -4/3x - 3
6. y = -4/3x - 3 slope = -4/3
y intercept = (0,-3)
