reflecting lines in lines

[stephp]

Hi
could you tell me how to reflect a line in any given line ...so for example I would like to reflect the line y=2x in the line y=3x
thanks

[Simon]

Hi stephp,

You cannot perform transformations on graphs in Autograph, only on shapes.  So the workaround for your current example is:

1. Plot y = 2x
2. Add a point at, for example, x = -2 and x = 2
3. Select the two points and then right-click and select Group to Shape
4. Plot y = 3x
5. Select the shape you created and the graph y = 3x and then right-click and select Reflection

The resulting reflection is of y = 2x between x = -2 and x = 2.  You can move the points further apart to see more of the reflection, e.g. to x = -10 and x = 10.

Hope this helps,

Simon