Reflections and Translations

Front

What is a reflection in geometry?

Back

A reflection is when you flip or mirror an object across a line.

Front

What does reflecting over the y-axis change?

Back

Reflecting over the y-axis changes the x-coordinate.

Front

Identify the transformation: Reflection across y-axis, Reflection across x-axis, 180 Rotation, Translation 2 units down.

Back

Reflection across x-axis.

Front

What is the line of reflection for a set of triangles if the answer is y-axis?

Back

The line of reflection is the y-axis.

Front

Which point shows a reflection of point Y(-5, -7) over the y-axis? (5, -7), (-5, -7), (5, 7), (5, 7)

Back

(5, -7).

Front

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

Back

The line of reflection is the x-axis.

Front

If a point A(3, 4) is reflected over the y-axis, what are the coordinates of the reflected point?

Back

(-3, 4).

Front

What happens to the y-coordinate when a point is reflected over the x-axis?

Back

The y-coordinate changes sign.

Front

What is the result of reflecting the point B(-2, 5) over the x-axis?

Back

B'(-2, -5).

Front

What is a translation in geometry?

Back

A translation is when you slide an object from one place to another without changing its shape or orientation.