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10 Cards in this Set

  • Front
  • Back

Reflection across x-axis

The x-value remains the same, while the y-value changes signs.

Reflection across y-axis

The y-value remains the same, while the x-value changes signs.

Reflection across y = x

The x & y values “switch”. Object “flips” across the line y = x

Reflection across y = -x

Object “flips” across the line y = -xThe x & y values “switch” and their signs change

Reflection through the origin

Reflection in the origin is an example of a “point reflection”The signs of the x & y values change for each ordered pair

Rotation of 90 degrees counterclockwise

“Turns” 90º about the originRule: (x, y) -> (-y, x)

Rotation of 180 degrees counterclockwise

“Turns” 180º about the originRule: (x, y) -> (-x, -y)Same as a reflection in the origin

Rotation of 270 degrees counterclockwise

Rotation of 270 degrees counterclockwise

Dilation

Dilations enlarge or reduce an object by a scale factor.

Translation

“Slides” move an object left or right and up or down on a coordinate plane.