TRANSFORMATION RULES

Front

What is a transformation in geometry?

Back

A transformation in geometry is an operation that moves or changes a shape in some way to produce a new shape.

Front

What does the transformation rule (x, y) --> (x + 2, y - 3) represent?

Back

This transformation represents a slide (translation) of the shape 2 units to the right and 3 units down.

Front

What type of transformation is dilation?

Back

Dilation is a transformation that changes the size of a shape but not its shape, by a scale factor.

Front

What is reflection in geometry?

Back

Reflection is a transformation that flips a shape over a line, creating a mirror image.

Front

What is rotation in geometry?

Back

Rotation is a transformation that turns a shape around a fixed point at a certain angle.

Front

What is translation in geometry?

Back

Translation is a transformation that moves every point of a shape the same distance in the same direction.

Front

How do you identify a translation transformation?

Back

A translation transformation can be identified by a rule that adds or subtracts values from the x and/or y coordinates.

Front

What is the scale factor in dilation?

Back

The scale factor in dilation is the ratio of the length of a side of the image to the length of the corresponding side of the original shape.

Front

What happens to the coordinates of a shape during a reflection over the x-axis?

Back

During a reflection over the x-axis, the y-coordinates of the points are inverted (multiplied by -1).

Front

What happens to the coordinates of a shape during a reflection over the y-axis?

Back

During a reflection over the y-axis, the x-coordinates of the points are inverted (multiplied by -1).