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Linear Modeling

What you have to know :

  • You must be able to solve linear equation. 

    (If not check this lesson)

  • You must be able to Rearrange Formulae. 

    (If not check this lesson)

  • How to plot linear graphs

    (If not check this lesson)

Straight Lines
1. Watch this video
2. Watch this presentation
3. Watch this presentation2
2. Parallel lines and y-intercept form
5. Perpendicular lines

Now you know :

  • How to draw a line given one point and the slope

  • How to draw a line given two points

  • How to draw a line given two points

  • When two lines are parallel

  • When two lines are perpenticular

Straight Lines
lin.jpg
linper.jpg

Another way of seeing the gradient of the line

  • We must also notice that the gradient is at the same time the tangent of the angle of the line with x-axis.

    (If you do not remember the tangent of an angle see this lesson)

Angle of a Line

Solved Examples

  • A problem about the angle between two lines

Angle between two lines
1. Example 1

Now Lets Practice!

  • Solve the problems.

     

Solve the problems with slope and points
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