Designed by:

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Designed by

• Emily FreemanMcEachern High School2400 New
  Macland RdPowder Springs, GA  30127

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• Session 22 Warm up TEST Friday
• 1. Explain how a figure is translated for (-3,
  1).
• Explain how a figure is translated for (0, -5).
• Reflect over the y-axis (3, 5), (4, 0), (0,
  -3), (-1, 2).
• Reflect over the x-axis (-5, 2), (3, 0), (-1,
  -2).

Left 3 and up 1
Down 5
(-3, 5), (-4, 0), (0, -3), (1, 2)
(-5, -2), (3, 0), (-1, 2)
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Questions over HW? p. 688 1, 3, 7 9p.
694 5 9
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16.5 Rotations
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Rotation is simply turning about a fixed point.
For our purposes, the fixed point will be the
origin
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CLOCKWISE
is like a right turn.
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Hands in the air on the wheel.
Left hand is x Right hand is y
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Make a clockwise turn.
Which hand is at 12 oclock first?
X
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Rotate 90 degrees clockwise.
Change the sign of x switch the order of x and
y.
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Example Rotate 90 degrees clockwise.
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Rotate 90 clockwise
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Rotate 90 clockwise
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COUNTERCLOCKWISE
is like a left turn.
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Hands in the air on the wheel.
Left hand is x Right hand is y
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Make a counterclockwise turn.
Which hand is at 12 oclock first?
Y
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Rotate 90 degrees counterclockwise.
Change the sign of y Switch the order of x and
y
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Example Rotate 90 degrees counterclockwise.
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Rotate 90 counterclockwise
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Rotate 90 counterclockwise
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Rotating 180 degrees changes the sign of the x
and the sign of the y.
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Rotate 180 degrees.
Keep the order change the sign of both x y.
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Example Rotate 180 degrees.
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Rotate 180
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Rotate 180
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Worksheet front and back.Turn this worksheet in
today on the rolling cart. (Put your name on
your paper.)
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TEST 5.3, 16.3-16.5this Friday!
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Homework Does the Brain Good.

• Find the new coordinates
• 701 12 13
• Bottom p. 702 1 4

Homework