rotations in the coordinate plane

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ROTATIONS IN THE COORDINATE PLANE

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ROTATIONS IN THE COORDINATE PLANE. 90⁰ Rotation To rotate a point 90⁰ counterclockwise about the origin, multiply the y-coordinate by -1 and then interchange the x- and y-coordinates. Symbols ( x,y )  (- y,x ) - PowerPoint PPT Presentation

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Page 1: ROTATIONS IN THE COORDINATE PLANE

ROTATIONS IN THE COORDINATE PLANE

Page 2: ROTATIONS IN THE COORDINATE PLANE

ROTATIONS IN THE COORDINATE PLAN

90⁰ Rotation To rotate a point 90⁰ counterclockwise about the origin,

multiply the y-coordinate by -1 and then interchange the x- and y-coordinates.

Symbols (x,y)(-y,x)

To rotate a point 90⁰ clockwise about the origin, multiply the x-coordinate by -1 and then interchange the x- and y-coordinates.

Symbols (x,y) (y,-x)

Page 3: ROTATIONS IN THE COORDINATE PLANE

ROTATIONS 180⁰ Rotation To rotate a point 180⁰ counterclockwise or

clockwise about the origin, multiply the x- and y- coordinates by -1.

Symbol (x,y)(-x,-y)