1315035323
1315035323 1315035323
  • 18-02-2018
  • Mathematics
contestada

What are the coordinates of the image produced by applying the composition R0,-270*R0,-90 to the point (–5, 4)?

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Edufirst
Edufirst Edufirst
  • 19-02-2018
Answer: (- 5, 4)

Justification:

The question asks for the coordinates of the image produced by the composed rotation - 270° o - 90° to the point (-5,4);  that means applying a first rotation of - 90° and a second rotation of - 270°.

That composition of rotation is equivalent to one rotation of (- 270°) + (-90°) =  - 360°.

A rotation of - 360° means 360° clockwise; that is a complete turn, to lead the original point to itself.

Then, the image of  the point (- 5, 4) is the same point ( - 5,4)

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