Mr. B's Transformation Review, 2019-20

Front

What is a reflection in geometry?

Back

A reflection is a transformation that flips a figure over a line, creating a mirror image.

Front

What is a translation in geometry?

Back

A translation is a transformation that moves every point of a figure the same distance in the same direction.

Front

What is a rotation in geometry?

Back

A rotation is a transformation that turns a figure around a fixed point, called the center of rotation.

Front

What is a rigid transformation?

Back

A rigid transformation is a transformation that preserves the shape and size of a figure, including translations, rotations, and reflections.

Front

What happens to the coordinates of a point (x, y) when reflected over the y-axis?

Back

The coordinates become (-x, y).

Front

What happens to the coordinates of a point (x, y) when reflected over the x-axis?

Back

The coordinates become (x, -y).

Front

What is the result of applying the transformation (x, y) → (y, -x) to the point (-5, 6)?

Back

The result is (6, 5).

Front

If point A(-5, 2) is reflected over the y-axis, what are the new coordinates?

Back

The new coordinates are (5, 2).

Front

What is the effect of a translation of 5 units left and 1 unit up on the point (3, 4)?

Back

The new coordinates will be (-2, 5).

Front

What is the difference between rigid and non-rigid transformations?

Back

Rigid transformations preserve shape and size, while non-rigid transformations do not.