Transformations Review

Front

What is the rule for rotating a point 270° counterclockwise around the origin?

Back

(x,y)→(y, -x)

Front

What is the definition of rotation in geometry?

Back

To make a circular movement around a point.

Front

What is the rule for rotating a point 90° counterclockwise around the origin?

Back

(x,y)→(-y,x)

Front

If the point (8, 12) is dilated to (2, 3), what is the scale factor?

Back

¼

Front

In which axis is the picture being reflected if it is reflected in the y-axis?

Back

y-axis

Front

What is the rule for rotating a point 180° around the origin?

Back

(x,y)→(-x,-y)

Front

What is the definition of reflection in geometry?

Back

To flip a figure over a line to create a mirror image.

Front

What is the rule for reflecting a point across the x-axis?

Back

(x,y)→(x,-y)

Front

What is the rule for reflecting a point across the y-axis?

Back

(x,y)→(-x,y)

Front

What is the definition of dilation in geometry?

Back

To resize a figure by a scale factor.