Which transformation map the strip pattern onto itself?

P P P P P

answers:

A. a horizontal translation and a 18 rotation

B. a horizontal translation and a reflection across a vertical line

C. a horizontal translation and a glide reflection

D. a horizontal translation only

A horizontal translation and a 180 degrees rotation yields: d d d d d

a horizontal translation amd a reflection across a vertical line yields: q q q q q

a horizontal translation and a glide reflection yields: b b b b b

a translation only will yield: p p p p p

Therefore, the transformation map the strip pattern onto itself is a horizontal translation only.