shoyoh823 shoyoh823

04-07-2021
Mathematics

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How do I find the image after it’s been rotated 270 degrees about the point (-2,-1)?

How do I find the image after its been rotated 270 degrees about the point 21 class=

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jessmzhou4 jessmzhou4

04-07-2021

Answer: (-1, 2)

Step-by-step explanation:

It's a counter-clockwise rotation, that means (x, y) changes to (y, -x).

(-2, -1) ⇒ (-1, -(-2)) ⇒ (-1, 2)

If it's a clockwise rotation, then (x, y) will change to (-y, x)

(-2, -1) ⇒ (-(-1), -2) ⇒ (1, -2)

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