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Triangles DEF and D'E'F' are shown on the coordinate plane below:

Triangle DEF and triangle D prime E prime F prime with ordered pairs at D negative 1, 6, at E 1, 3, at F 6, 3, at D prime 6, 1, at E prime 3, negative 1, at F prime 3, negative 6.

What rotation was applied to triangle DEF to create triangle D'E'F'?

None of the above

90° counterclockwise

180°

90° clockwise

Answer :

The correct answer is:

90° clockwise

Explanation:

Comparing the image points to the pre-image points, we can see that in every ordered pair, x and y have been switched and x has been negated.  Algebraically, this means (x, y)→(y, -x).

This is the same mapping that a 90° clockwise rotation performs, so that is our answer.

Answer:

90° clockwise

Step-by-step explanation:

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