P. 6 Translations and Reflections Practice 2024

Front

What is a translation in geometry?

Back

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

Front

If a point A has coordinates (2, 3), where would A' be after a translation of (x + 3, y - 2)?

Back

A' would be at (5, 1).

Front

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

Back

It represents a slide right 2 units and down 3 units.

Front

What is a reflection in geometry?

Back

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

Front

What happens to the coordinates of a point when it is reflected over the y-axis?

Back

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

Front

If point K is at (3, 4), what are the coordinates of K' after reflecting over the y-axis?

Back

K' would be at (-3, 4).

Front

What is the line of reflection for a reflection across the x-axis?

Back

The line of reflection is the x-axis itself.

Front

When reflecting a point over the x-axis, which coordinate changes?

Back

The y-coordinate changes.

Front

What are the coordinates of point P (4, -5) after reflecting over the x-axis?

Back

P' would be at (4, 5).

Front

What does it mean to reflect a shape across the y-axis?

Back

It means to flip the shape over the y-axis, changing the sign of the x-coordinates.