Rigid Motion Transformations

Front

What is the original figure prior to a transformation called?

Back

Pre-image

Front

What direction is the x-axis?

Back

Horizontal

Front

How do you translate triangle A'B'C' to triangle ABC?

Back

Right two, down nine.

Front

What is the coordinate of A' if triangle ABCD is rotated 180° about the origin?

Back

(-3, -5)

Front

If the dotted figure is the image, over which axis was the original figure reflected?

Back

y-axis

Front

What is a transformation that moves a figure without changing its shape or size?

Back

Rigid motion.

Front

What are the three main types of rigid motion transformations?

Back

Translation, rotation, reflection.

Front

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

Back

(-x, y)

Front

What is the result of rotating a point (x, y) 90° counterclockwise about the origin?

Back

(-y, x)

Front

What is the result of translating a point (x, y) right 3 units and down 2 units?

Back

(x + 3, y - 2)