Transformations Test

Which of the following describes the sequence of transformations shown?

• Reflect across the x-axis and then rotate -90 degrees around the origin
• Rotate -90 degrees around the origin and then translate down.
• Reflect across the x-axis and then reflect across the y-axis.
• Translate up and then rotate 90 degrees about the origin.

Determine the image of Polygon ABCD after a dilation of ½ with center at (0, 0), then reflect across the x-axis

• A"(2.5, 1) B"(3.5, -0.5) C"(1.5, -2) D"(-1, -1.5)

• A"(2.5, -1) B"(3.5, 0.5) C"(1.5, 2) D"(-1, 1.5)

• A"(1, 2.5) B"(-0.5, 3.5) C"(-2, 1.5) D"(-1.5, -1)

• A"(5, 2) B"(7, -1) C"(3, -4) D"(-2, -3)

The dashed figure is the image of the solid figure.  Which of the following represents the Translation?

• (x, y) --> (x - 7, y + 4)
• (x, y) --> (x + 7, y - 4)
• (x, y) --> (x + 4, y - 7)
• (x, y) --> (7x, 4y)

Choose the correct scale factor:

• 2

• 3

• 1/3

• 1/2

SQR rotated ______________ to get S'Q'R'

• 90^o clockwise

• 180^o clockwise

• 270^o clockwise

The point ( -2,5) is reflected over the line x = 1.  Find its image.

• (  4,  5)
• ( -2  , -5)
• ( 2  ,  5)
• (2   , -5)

Triangle C is rotated 270° counterclockwise with the origin as the center of rotation to create a new figure. Which triangle shows the new location?

The point A(8, 12) was dilated to become point A'(2, 3). What was the scale factor?

• ½
• ¼
• 4
• 2

Triangle ABC is dilated by a scale factor of 5.

Give the new coordinates for A'

A double reflection over the x- and y-axes is the same as what transformation?