Completing Grid Figures
ISEE Lower Level Mathematics Achievement · Flashcards · Recall
ISEE LOWER LEVEL MATHEMATICS ACHIEVEMENT · FLASHCARDS
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QUESTION
Identify the rule for a
90
∘
90^\circ
9
0
∘
counterclockwise rotation about the origin of
(
x
,
y
)
(x,y)
(
x
,
y
)
.
QUESTION
Identify the rule for a
180
∘
180^\circ
18
0
∘
rotation about the origin of
(
x
,
y
)
(x,y)
(
x
,
y
)
.
QUESTION
Identify the rule for a
90
∘
90^\circ
9
0
∘
clockwise rotation about the origin of
(
x
,
y
)
(x,y)
(
x
,
y
)
.
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ANSWER
(
y
,
−
x
)
(y,-x)
(
y
,
−
x
)
. A
90
∘
90^\circ
9
0
∘
clockwise rotation about the origin transforms
(
x
,
y
)
(x,y)
(
x
,
y
)
to
(
y
,
−
x
)
(y,-x)
(
y
,
−
x
)
.
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