Rotations

Front

What is the result of rotating the point (7,8) around the origin 90 degrees counterclockwise?

Back

(-8,7)

Front

What is the transformation rule for rotating a point (x,y) 270 degrees counterclockwise?

Back

(x,y)→(y, -x)

Front

What is the result of rotating a point (x,y) 180 degrees?

Back

(-x, -y)

Front

How do you reflect the point (2, -4) over the y-axis?

Back

(-2, -4)

Front

What is the image of the point (x,y) after a 90-degree counterclockwise rotation?

Back

(-y, x)

Front

What is the image of the point (x,y) after a 180-degree rotation?

Back

(-x, -y)

Front

What is the image of the point (x,y) after a 270-degree counterclockwise rotation?

Back

(y, -x)

Front

What is the angle of rotation for a full circle?

Back

360 degrees

Front

What is the angle of rotation for a half circle?

Back

180 degrees

Front

What is the effect of rotating a point around the origin?

Back

The coordinates change based on the angle of rotation.