Transformations Flashcard Study Guide

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 does it mean to dilate a figure?

Back

Dilation is a transformation that changes the size of a figure but keeps its shape, using a scale factor.

Front

What is a translation in geometry?

Back

Translation is a transformation that moves a figure from one location to another without changing its shape or orientation.

Front

What is the scale factor in dilation?

Back

The scale factor is the ratio of the size of the new figure to the size of the original figure.

Front

How do you reflect a figure over the y-axis?

Back

To reflect a figure over the y-axis, you change the sign of the x-coordinates of each point.

Front

How do you reflect a figure over the x-axis?

Back

To reflect a figure over the x-axis, you change the sign of the y-coordinates of each point.

Front

What does it mean to translate a figure 5 units left?

Back

Translating a figure 5 units left means subtracting 5 from the x-coordinates of each point.

Front

What does it mean to translate a figure 2 units up?

Back

Translating a figure 2 units up means adding 2 to the y-coordinates of each point.

Front

What is the result of reflecting a point (3, 4) over the y-axis?

Back

The result is (-3, 4).

Front

What is the result of translating a point (2, 3) 5 units right and 2 units down?

Back

The result is (7, 1).