Translations and Reflections

Front

What is a translation in geometry?

Back

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

Front

When translating a figure on a coordinate plane, which coordinate is affected by movement left and right?

Back

The x-coordinate.

Front

What happens to the y-coordinate when a figure is translated up or down?

Back

The y-coordinate is affected by the movement up or down.

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

Which axis is used for reflection if the figure is flipped horizontally?

Back

The x-axis.

Front

Which axis is used for reflection if the figure is flipped vertically?

Back

The y-axis.

Front

In a translation, the preimage and image are ___________.

Back

congruent.

Front

How do you determine the coordinates of a point after a reflection across the x-axis?

Back

The x-coordinate remains the same, and the y-coordinate changes sign.

Front

How do you determine the coordinates of a point after a reflection across the y-axis?

Back

The y-coordinate remains the same, and the x-coordinate changes sign.

Front

What is the result of reflecting the point (3, 4) across the x-axis?

Back

(3, -4).