Question

question 1
which type of transformation is not a rigid transformation?
rotation
reflection across x - axis
translation
reflection across y - axis

Explanation:

Rigid - transformations preserve distance and angle measures. Rotation, reflection across x - axis, reflection across y - axis, and translation are all rigid transformations. None of the given options are non - rigid transformations. But in general, dilation (not in the options) is a non - rigid transformation as it changes the size of the figure. Since we must choose from the given options and they are all rigid, this might be a mis - formatted question. However, based on the knowledge of rigid transformations, all the provided choices are incorrect for the question as asked in the sense that they are all rigid.

Answer:

None of the above (since all options: Rotation, Reflection across x - axis, Translation, Reflection across y - axis are rigid transformations)