Translations and Reflections Practice Flashcard

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

Back

To reflect a point across the y-axis, you change the sign of the x-coordinate while keeping the y-coordinate the same.

Front

What is a translation in geometry?

Back

A translation is a transformation that slides a shape from one position to another without changing its size, shape, or orientation.

Front

If point A is at (1, 4), what is its reflection across the y-axis?

Back

(-1, 4)

Front

What is the result of translating point B (4, -1) 3 units left and 3 units up?

Back

(1, 2)

Front

What does the term 'slide' refer to in geometry?

Back

Translation.

Front

What happens to the coordinates of a point when it is reflected across the x-axis?

Back

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

Front

If point B is at (-4, 4), what is its reflection across the y-axis?

Back

(4, 4)

Front

What is the difference between reflection and rotation?

Back

Reflection flips a shape over a line, while rotation turns a shape around a fixed point.

Front

What is the definition of the x-axis?

Back

The x-axis is the horizontal line in a coordinate plane where y=0.