Compositions — Unit test Answers
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Which figure has an order 3 rotational symmetry?
A
right triangleB
equilateral triangleC
regular hexagonD
right trapezoid22
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Triangle ABC was translated according to the rule (x, y) → (x + 1.5, y – 3.5) to create the image ΔA'B'C' shown on the coordinate plane.Which graph shows the pre-image, ΔABC?
A
On a coordinate plane, a triangle has points A (0.5, negative 1.5), B (0.5, negative 4.5), C (negative 3.5, negative 4.5).
B
On a coordinate plane, a triangle has points A (2.5, 0.5), B (2.5, 2.5), C (negative 1.5, negative 2.5).
C
On a coordinate plane, a triangle has points A (negative 4.5, 3.5), B (negative 4.5, 0.5), C (negative 8.5, 0.5).
D
On a coordinate plane, a triangle has points A (negative 2.5, 5.5), B (negative 2.5, 2.5), C (negative 6.5, 2.5).
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Question text not available
A
a translation down and to the rightB
a translation up and to the rightC
a 270° rotation about point B'D
a 180° rotation about point B'24
A composition of transformations maps ΔXYZ to ΔX"Y"Z".
A
a 180° rotation about point XB
a 270° rotation about point XC
a translation to the rightD
a reflection across line m25
Which statements are true about triangle ABC and its translated image, A'B'C'? Select two options.
A
The rule for the translation can be written as T–5, 3(x, y).B
The rule for the translation can be written as T3, –5(x, y).C
The rule for the translation can be written as(x, y) → (x + 3, y – 3).D
The rule for the translation can be written as(x, y) → (x – 3, y – 3).E
Triangle ABC has been translated 3 units to the right and 5 units down.Did you find these answers helpful?
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