Ch6

1. This is a basic introduction video about the coordinate plane, plotting points in the coordinate plane, what does (x, y) mean, and how to draw points and determine the coordinates of any point on the coordinate plane. Most of you probably know this already.

2. This Khan Academy explains the equation of a line: y=mx+b. This is slope-intercept form.

3. This video explains how to find the x-intercept and y-intercept of a line. This can be done using Standard Form or Slope-Intercept form.

4. This video also explains y=mx+b in multiple ways, with some examples. It shows you how to draw a line from the equation y=mx+b.

It shows you how to find the equation y=mx+b by looking at a graph.

5. This Khan Academy video explains Standard Form of a line, and how to rearrange an equation from Slope-Intercept Form to Standard Form. Please ignore what he says about Point-Slope Form for now. We will discuss what that means in a later video.

6. This video explains how to graph a line using the x-intercept and the y-intercept. This is usually what you do after getting an equation into Standard Form. This is different from graphing a line using the slope and y-intercept.

Watch from minute 2:08-7:52

7. This Khan Academy video explains parallel and perpendicular lines and their slopes and relationships, and goes through an example of a question you might be asked about this,

8. Here is another video that shows an example of parallel and perpendicular lines.

9. This Khan Academy video explains Point-Slope Form of the equation of a line.

10. This video also explains the Point-Slope Form of the equation of a line.

11. This Khan Academy video explains how to convert between the forms of an equation of a line:

• Slope-Intercept Form
• Point-Slope Form
• Standard Form

12. This summary video is 23 mins long and summarizes slope, y-intercept, points, finding slope from points or from a point and the y-intercept, y=mx+b, etc.

13. This summary video also summarizes y=mx+b and using slope in equations of lines, and using other methods. It teachers you how to find the equation of a line using 2 points.

14. This video explains how to find the point of intersection in a linear system by using the TI-84 graphing calculator.

15. This video also explains how to find the point of intersection in a linear system by using the TI-84 graphing calculator.