8th Vocabulary (Model 1,2&3))

Front

What is the formula for slope?

Back

m = y/x

Front

Identify the rule after a 90° counter clockwise rotation: (x, y) ---> ___________

Back

(-y, x)

Front

Identify the rule after a 180° clockwise or counter clockwise rotation: (x, y) ---> ___________

Back

(-x, -y)

Front

What is reflection in geometry?

Back

A rigid motion transformation that flips a figure across a line of reflection.

Front

What is translation in geometry?

Back

A rigid motion transformation that slides each point of a figure the same distance and direction along a line.

Front

What is a rigid motion transformation?

Back

A transformation that preserves the size and shape of a figure.

Front

What happens to the coordinates of a point (x, y) after a 90° clockwise rotation?

Back

(y, -x)

Front

What happens to the coordinates of a point (x, y) after a 180° rotation?

Back

(-x, -y)

Front

What is the difference between reflection and rotation?

Back

Reflection flips a figure across a line, while rotation turns a figure around a point.

Front

What is the effect of a translation on a figure?

Back

It moves the figure without changing its shape or size.