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Wednesday April 9, 2014 Bell Ringer: - PowerPoint PPT Presentation


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Wednesday April 9, 2014 Bell Ringer:. Show your work!. What We are Learning Today:. To perform Dilations in the coordinate plane. What You Need To Do:. Follow along with the video and TAKE NOTES! TAKE NOTES TAKE NOTES If you have not noticed…TAKE NOTES

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Presentation Transcript
what we are learning today
What We are Learning Today:
  • To perform Dilations in the coordinate plane
what you need to do
What You Need To Do:
  • Follow along with the video and TAKE NOTES!
  • TAKE NOTES
  • TAKE NOTES
  • If you have not noticed…TAKE NOTES
  • Today’s notes follow the video so…fill in the missing information!
  • Dilations in the Coordinate Plane
  • Stop at 4:13
definitions
Definitions:
  • Dilation:
  • Scale Factor (also known as k factor):
    • >1
    • <1
definitions1
Definitions:
  • Similar:
  • Center of Dilation:
example 1
Example 1:

Dilate ∆ABC by a factor of 2. Use the ORIGIN as the center of dilation.

B

Notes:

A

C

things to know from this dilation
Things to Know From this Dilation:
  • How do we check our dilation?
  • What happens to the distances from the point of dilation?
example 2
Example 2:

Dilate ∆ABC by a factor of ¼ . Use the ORIGIN as the center of dilation.

B

Notes:

A

C

practice time
Practice Time:
  • 6.7 Dilations Worksheet
    • Work AT THE BOARD!
    • For the new points:
      • Write them on the board
    • For the dilations:
      • Draw the Dilated Image on the laminated coordinate plane