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## 'Parallel Lines' printed from http://nrich.maths.org/

Alter the positions of the line by moving the points.

How does the position of the line affect the equation of the
line?

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Now explore what happens when you have two lines.

Position the lines so that they are parallel to each other.

Try various arrangements.

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What can you say about the equations of parallel lines?

You may want to take a look at

Perpendicular
Lines after this.