Transformations Geometry

Transformations Geometry

Translations: watch the video to remind you

https://www.youtube.com/watch?v=zuY6zu47Rl8

and

Reflections

https://www.youtube.com/watch?v=VeQZEbgwqPc

and

https://www.youtube.com/watch?v=DerrI1FstO4

Rotations

https://www.youtube.com/watch?v=fgJyQxhXLZQ

Dilation

https://www.youtube.com/watch?v=Cz47ev2QAlw

and

https://www.youtube.com/watch?v=Q5E5tLe60xM

Multiple Choice

Write a rule for the translation.

• (x -1, y + 2)

• (x -2, y + 1)

• (x +2, y - 1)

• (x +1, y - 2)

Multiple Choice

Reflect Point C over the line x = 1

• (-1, 2)

• (3, 0)

• (0, 2)

• (3, -1)

Multiple Choice

Point (-3,-3) is rotated 360 degrees clockwise about the origin.  Where is the new point located?

• (3,3)
• (-3,3)
• (3,-3)
• (-3,-3)

Multiple Choice

Identify the transformation from A to D.

• 90^o Clockwise Rotation
• 180^o Rotation
• 270^o Clockwise Rotation
• 360^o Rotation

Multiple Choice

Given the point Y at (5, 2), where would the image be after the following translation: (x + 2, y - 7)?

• (7, 7)

• (3, 9)

• (4, -5)

• (7, -5)

Multiple Choice

Name the series of transformations that maps ABC onto DEF

• reflect over x then translate left 6 up 1
• reflect over y then translate down 6 left 1
• translate right 6 down 1, then reflect over x
• rotate 90 clockwise then reflect over y

Multiple Choice

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

• A

• B

• C

• D

Multiple Choice

Choose the correct scale factor:

• 2.5

• 1.5

• 3.5

• 4

Multiple Choice

Dilate Point B by a scale factor of 1/2

• (1.5,-4)
• (-1.5,1)
• (-1,-1.5)
• (-2,-2)

Multiple Choice

A scale factor of less than one means

• that the image will be larger than the pre-image.
• That the image will be the same as the pre-image.
• That you need to subtract that amount off  of each side.
• That the image will be a reduction of the pre-image.

Multiple Choice

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

• ½
• ¼
• 4
• 2

Multiple Choice

Which of the following describes the sequence of transformations shown?

• Reflect across the x-axis and then rotate -90 degrees cw around the origin

• Rotate 90 degrees cw 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 ccw about the origin.