[GH4.2] Reflections, symmetry & glide reflections

Front

What is the color of the y-axis?

Back

Black

Front

What is the color of the x-axis?

Back

Red

Front

Find the image of A( -3, 5) after translating (x,y) --> (x , y - 4) then reflecting across the y-axis. Show your work on the graph. Label each point.

Back

(3,1)

Front

What is the rule for reflecting ( x , y ) over the line y = x?

Back

( y , x )

Front

True or false: the diagram is an example of a glide reflection.

Back

True

Front

Define reflection in geometry.

Back

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

Front

What is symmetry in geometry?

Back

A property where a shape or object is invariant under certain transformations, such as reflection or rotation.

Front

What is a glide reflection?

Back

A transformation that combines a translation followed by a reflection.

Front

How do you reflect a point (x, y) across the y-axis?

Back

The image is (-x, y).

Front

How do you reflect a point (x, y) across the x-axis?

Back

The image is (x, -y).