3.3 Reflections Practice

Front

What stays the same when you reflect over the y-axis?

Back

y stays the same.

Front

What are the coordinates of vertex (5, 2) after reflecting across the x-axis?

Back

(5, -2)

Front

Reflect Point C (3, 2) over the y-axis. What are the new coordinates?

Back

(-3, 2)

Front

If triangle ∆QRS has point S at (3, 7), what are the coordinates of S' after reflecting across the y-axis?

Back

S'(-3, 7)

Front

What are the coordinates of vertex A (5, 2) after a reflection over the x-axis?

Back

A’(5, -2)

Front

Define reflection in geometry.

Back

Reflection is a transformation that flips a figure over a line, creating a mirror image.

Front

What is the effect of reflecting a point (x, y) over the x-axis?

Back

The new coordinates will be (x, -y).

Front

What is the effect of reflecting a point (x, y) over the y-axis?

Back

The new coordinates will be (-x, y).

Front

How do you find the image of a point after reflection?

Back

Change the sign of the coordinate(s) corresponding to the axis of reflection.

Front

What happens to the x-coordinate when reflecting over the y-axis?

Back

The x-coordinate changes sign.