Reflections

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 is the line of reflection?

Back

The line of reflection is the line over which a figure is reflected, creating a mirror image.

Front

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

Back

To reflect a point (x, y) over the x-axis, the new coordinates become (x, -y).

Front

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

Back

To reflect a point (x, y) over the y-axis, the new coordinates become (-x, y).

Front

What happens to the coordinates of a point reflected over the x-axis?

Back

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

Front

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

Back

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

Front

What is the result of reflecting the point (3, 5) over the y-axis?

Back

The result is (-3, 5).

Front

What is the result of reflecting the point (-2, -4) over the x-axis?

Back

The result is (-2, 4).

Front

What is the mirror line for the reflection of a figure?

Back

The mirror line is the line that acts as the boundary for the reflection, where each point on one side has a corresponding point on the other side.

Front

If a triangle is reflected over the y-axis, what happens to its orientation?

Back

The orientation of the triangle is reversed.