Geometry – Unit 2 Practice
Rotation Coordinate Rules
Name: _____________________________!
Date: ___________ Pd: ____
G.CO.A.4
1) Perform the given rotations about the origin and record the images.
RO ,90° ( A ) = A ' ( ___, ___ )
a) A ( 2, 7 )
b) B ( 8, 4 )
RO ,90° ( B ) = B ' ( ___, ___ )
c) C ( 0, −2 )
RO ,90° ( C ) =
C ' ( ___, ___ )
d) D ( −5, −5 )
RO ,90° ( D ) =
D ' ( ___, ___ )
A
B
e) What is the general coordinate rule for a
rotation of 90° about the origin?
RO ,90° ( x, y ) → ( ___, ___ )
C
D
2) Perform the given rotations about the origin and record the images.
RO ,180° ( A ) = A ' ( ___, ___ )
a) A ( 2, 7 )
b) B ( 8, 4 )
RO ,180° ( B ) = B ' ( ___, ___ )
c) C ( 0, −2 )
RO ,180° ( C ) =
C ' ( ___, ___ )
d) D ( −5, −5 )
RO ,180° ( D ) =
D ' ( ___, ___ )
A
B
e) What is the general coordinate rule for a
rotation of 180° about the origin?
RO ,180° ( x, y ) → ( ___, ___ )
C
D
SNRPDP
Unit 2: Transformations in the Plane
NVACS – Revised 2015-2016
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Practice – Unit 2 (cont.)
3) Perform the given rotations about the origin and record the images.
RO ,180° ( A ) = A ' ( ___, ___ )
a) A ( 2, 7 )
b) B ( 8, 4 )
RO ,180° ( B ) = B ' ( ___, ___ )
c) C ( 0, −2 )
RO ,180° ( C ) =
C ' ( ___, ___ )
d) D ( −5, −5 )
RO ,180° ( D ) =
D ' ( ___, ___ )
A
B
e) What is the general coordinate rule for a
rotation of 270° about the origin?
RO ,180° ( x, y ) → ( ___, ___ )
C
D
SUMMARIZE THE
ROTATION
COORDINATE RULES
RO ,90° ( x, y ) → (_____ , ______)
RO ,180° ( x, y ) → (_____ , ______)
RO ,270° ( x, y ) → (_____ , ______)
4) Determine the coordinate of the given rotation pre-images and images.
a) RO ,90° (1, −5) =
(______, ______)
b) RO ,180° (______, ______) = (−5,5)
c) RO ,270° (______, ______)= (1, −9)
d) RO ,270° (5, −1) =
(______, ______)
e) RO ,90° (______, ______) = (1, 2)
f)
RO ,270° (7, 0) = (______, ______)
g) RO ,90° (−1,3) =
(______, ______)
h) RO ,180° (______, ______) = (11, 7)
i)
RO ,270° (______, ______)
= (6, −2)
j)
RO ,90° (−7, −3) =
(______, ______)
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