Final Review Rigid Motion

A rigid motion ...

• preserves size and location

• preserves shape and location

• preserves size and shape

• makes the figure larger

The rule for a rotation of 90° is ...

• (-y, x)

• (-x, -y)

• (y, -x)

• (y, x)

If you are performing a reflection in the x-axis, the rule is ....

• (-x, y)

• (x, -y)

• (x, y)

• (-x, -y)

The rule for a rotation of 180° is ...

• (-x, y)

• (x, -y)

• (-x, -y)

• (y, x)

If you are performing a reflection over the y-axis, the rule is ...

• (x, y)

• (-x, y)

• (x, -y)

• (y, x)

If you are performing a reflection in the line y=x, the rule is ...

• (x, y)

• (-x, y)

• (x, -y)

• (y, x)

Which transformation is NOT a rigid motion (the size changes)?

• reflection

• rotation

• dilation

• translation

When performing a translation, or slide, you _____ the numbers to your x and y value in the point. 

• add

• subtract

• multiply

• divide

A __________ is a directed line segment that has both length and direction.  It is used when performing translations off the coordinate plane.

• vector

• rigid motion

• magnitude

• Gru

A rotation always moves _____________________ unless otherwise stated.

• clockwise

• counterclockwise

• sideways

• backwards