Reflections

Front

What is the term for the original figure prior to a transformation?

Back

Pre-image

Front

What is true about reflections in geometry?

Back

Reflections are always congruent.

Front

Which axis is known as the horizontal (left-right) axis in a Cartesian coordinate system?

Back

x-axis

Front

What is the result of a transformation called?

Back

Image

Front

If a point is reflected over the x-axis, what happens to its y-coordinate?

Back

The y-coordinate changes sign.

Front

What is the term for a transformation that flips a figure over a line?

Back

Reflection

Front

In a reflection over the y-axis, how does the x-coordinate of a point change?

Back

The x-coordinate changes sign.

Front

What is the line called over which a figure is reflected?

Back

Line of reflection

Front

If point A is at (3, 4), what are the coordinates of its reflection over the x-axis?

Back

(3, -4)

Front

What is the relationship between the pre-image and the image in a reflection?

Back

They are congruent and equidistant from the line of reflection.