2.3 Dilations

by Jason Appel

| 12 QuestionsBy the end of this playlist, I can...

-dilate a polygon about a given point in the coordinate plane

1

1 pt

I've completed the video or mini-lesson on dilations about the origin and understand how to complete the example.

True

False

2

1 pt

I've completed the video or mini-lesson (or figured it out for myself) on dilations about a point other than the origin and understand how to complete the example.

True

False

Try a few of these practice problems on basic dilations. Move on when ready.

Challenge (optional):

Try a few of these more challenging practice problems on dilations. Move on when ready.

Try a few of these even more challenging practice problems on dilations. Move on when ready.

3

4

5

3

10 pts

Write the coordinates of S', the image of S after a dilation with a scale factor of 1/3, centered at the origin.

4

10 pts

Write the coordinates of T', the image of T after a dilation with a scale factor of 1/3, centered at the origin.

5

10 pts

Write the coordinates of U', the image of U after a dilation with a scale factor of 1/3, centered at the origin.

6

7

8

9

6

10 pts

Write the coordinates of D', the image of D after a dilation with a scale factor of 2.5, centered at the origin.

7

10 pts

Write the coordinates of E', the image of E after a dilation with a scale factor of 2.5, centered at the origin.

8

10 pts

Write the coordinates of F', the image of F after a dilation with a scale factor of 2.5, centered at the origin.

9

10 pts

Write the coordinates of G', the image of G after a dilation with a scale factor of 2.5, centered at the origin.

10

10

10 pts

The orange shape is a dilation of the black shape. What is the scale factor of the dilation?

11

11

10 pts

The blue shape is a dilation of the black shape. What is the scale factor of the dilation?

12

10 pts

I've completed the dilations practice, checked my answers, and feel confident in my ability to perform dilations like them.

True

False

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