Question

the rotation function mapping for a 90 - degree clockwise rotation about the origin is equivalent to which other transformation mapping? (1 point)

o a reflection over the line y = x

o a dilation with a scale factor of 1/4

o a translation

o a 270 degrees counterclockwise rotation

Explanation:

A 90 - degree clockwise rotation about the origin and a 270 - degree counter - clockwise rotation about the origin both map a point $(x,y)$ to $(y, - x)$. A reflection over $y = x$ maps $(x,y)$ to $(y,x)$, a dilation changes the size, and a translation moves the figure without rotation or reflection.

Answer:

a 270 degrees counterclockwise rotation