Reflections

Front

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

Back

The y-coordinate changes its sign.

Front

What is the result of a transformation called?

Back

Image.

Front

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

Back

A'(3, -4).

Front

What is the effect of reflecting a point over the y-axis?

Back

The x-coordinate changes its sign.

Front

If point B(2, 3) is reflected over the x-axis, what are the coordinates of B'?

Back

B'(2, -3).

Front

What is the pre-image in a transformation?

Back

The original figure before the transformation.

Front

Which point would be at (3, -6) after reflecting over the x-axis?

Back

A.

Front

What is the reflection of point C(-5, 2) over the y-axis?

Back

C'(5, 2).

Front

If triangle ∆XYZ has vertices X(1, 2), Y(3, 4), Z(5, 6), what are the coordinates of the vertices after reflecting over the x-axis?

Back

X'(1, -2), Y'(3, -4), Z'(5, -6).

Front

What does a reflection across the y-axis do to the coordinates of a point (x, y)?

Back

It transforms them to (-x, y).