Home | Algebra | Functions&Equations | Additional Investigations | Parallel Lines

Twice Reflected over parallel lines

Lines y = j and y = k are parallel.
E is an arbitrary point between the two lines.
Reflect point E over line y = k to create point E '.
Reflect point E ' over line y = j to create point E".
Find an equation that relates the distance between E and E ' '.
Would your answer change if E was outside of the lines?

Submit your idea for an investigation to InterMath.