Geometry Transformations

jchirles, Jan 26, 2015


  • 1. Reflection over y=mx+b
  • 2. Reflection of an Object
  • 3. Line Symmetry
  • 4. Draw line of symmetry
  • 5. Folding and lines of symmetry in the square
  • 6. Draw image over the line of symmetry
  • 7. Glide Reflection

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Reflection over y=mx+b

Adjust the inputs to y=mx+b by using the slider, choosing values for m and b. Observe the coordinates of the original figure and its reflection

1. Set the equation[math] y=x[/math] using m and b. What do you notice about the coordinates of the reflection? Drag the coordinates of the original figure. Is your theory correct? 2. Set the equation [math]y=-x[/math] using m and b. What do you notice about the coordinates of the reflection? Drag the coordinates of the original figure. Is your theory correct? 3. Set the equation [math]y=x+1[/math]. What is similar between this reflection and [math]y=x[/math]?
– jchirles

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