Geometry Transformations Review 1

Translations, rotations, and reflections are three different types of what?

• Transformations

• Geometry

• Vectors

• Shapes

A turn is also called a ___________.

• Translation

• Reflection

• Rotation

• Transformation

Congruent means...

• The same angles.

• The same size and same shape.

• Equal to.

• The same transformation.

The original figure prior to a transformation.

• Pre-image

• Image

The result of a transformation.

• Pre-image

• Image

Point N(6, –5) is reflected across the

x-axis. What are the coordinates of the image?

• (-6, -5)

• (-5, 6)

• (5, -6)

• (6, 5)

Suppose triangle RST shown on the

coordinate grid is reflected across the y-axis. Which ordered pair does not represent a vertex of the reflected triangle?

• (5, 1)

• (-4, -2)

• (2, -4)

• (-2, 4)

Triangle LMN has vertices L(–1, 4), M(–2, 4), and N(–1, –1). What are the coordinates of the image of point M after a dilation with a scale factor of 3?

• (-6, 12)

• (-6, 4)

• (-2, 12)

• (12, -6)

If the figure is rotated 90 degrees clockwise, what are the coordinates of R?

• (-3, 3)

• (3, -3)

• (-3, -3)

• (3, 3)

What scale factor was used for the dilation shown?

• 1/2

• 1

• 2

• 3