Question

which rotation is shown in the coordinate plane? 180° clockwise 90° clockwise 180° counterclockwise 90° counterclockwise

Explanation:

Step1: Recall rotation rules

For 90 - degree clockwise: $(x,y)\to(y, - x)$; for 90 - degree counterclockwise: $(x,y)\to(-y,x)$; for 180 - degree: $(x,y)\to(-x,-y)$.

Step2: Analyze points

By observing the transformation of points like $D$ to $D'$, it follows the 180 - degree rotation rule.

Answer:

180° counterclockwise