Chapter 4 Transformation Review

Front

Reflections over the y-axis change the ___________.

Back

x-coordinate

Front

Which answer shows a reflection across the x-axis?

Back

c

Front

If you were to rotate ABCD 180° about the origin, what would the coordinate of A' be?

Back

(-3, -5)

Front

Describe the transformation shown if the image on the left is the pre-image.

Back

Reflection across the y axis

Front

The name of the figure before the rotation is...

Back

Preimage

Front

What is a reflection in geometry?

Back

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

Front

What does a rotation of 90° clockwise do to the coordinates of a point (x, y)?

Back

It transforms the point to (y, -x).

Front

Define translation in the context of transformations.

Back

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

Front

What is the effect of a dilation by a factor of 2?

Back

It enlarges the figure, making it twice as large in every dimension.

Front

What is the difference between a pre-image and an image?

Back

The pre-image is the original figure before transformation, while the image is the result after transformation.