Week 8: Similarity Transformations Answers
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1
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What is true about the image ΔQ'R'S'? Select three options.Which statements are true?
A
DO,2 (x,y) = (2x, 2y)B
Side Q'S' lies on a line with a slope of -1.C
QR is longer than Q'R'.D
The vertices of the image are closer to the origin than those of the pre-image.E
The distance from Q' to the origin is twice the distance from Q to the origin.2
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On a coordinate plane, 2 polygons are shown. Polygon A B C D is larger than polygon A prime B prime C prime D prime and is reflected across the y-axis to form polygon A prime B prime C prime D prime.
A
a dilation with a scale factor less than 1 and then a reflectionB
a dilation with a scale factor less than 1 and then a translationC
a dilation with a scale factor greater than 1 and then a reflectionD
a dilation with a scale factor greater than 1 and then a translation3
Which graph shows a dilation?
A
On a coordinate plane, 2 quadrilaterals are shown. The larger quadrilateral has points (negative 4, 3), (0, 3), (2, 0), and (negative 2, 0). The smaller quadrilateral has points (negative 2, 2), (0, 2), (0.5, 0), and (negative 1.5, 0).
B
On a coordinate plane, 2 quadrilaterals are shown. The larger quadrilateral has points (negative 4, 3), (0, 3), (2, 0), and (negative 2, 0). The smaller quadrilateral has points (negative 2, 2), (0, 2), (0.5, 0), and (negative 1.5, 0).
C
On a coordinate plane, 2 quadrilaterals are shown. The larger quadrilateral has points (negative 5, 3), (1, 3), (4, 0), (negative 2, 0). The smaller quadrilateral has points (negative 1, 0), (negative 2, 1), (0, 1), and (1, 0).
D
On a coordinate plane, 2 quadrilaterals are shown. The larger quadrilateral has points (negative 5, 3), (1, 3), (4, 0), (negative 2, 0). The smaller quadrilateral has points (negative 0.5, 0), (negative 1, 2), (1, 2), (1.5, 0).
4
On a coordinate plane, 2 quadrilaterals are shown. Quadrilateral A B C D has points (2, negative 2), (4, negative 2), (3, negative 4), and (1, negative 4). Quadrilateral J K L M has points (4, negative 4), (8, negative 4), (6, negative 9), and (2, negative 9).
A
Yes, because sides JK and ML are twice as long as sides AB and DC.B
Yes, because both figures are parallelograms, so corresponding sides are parallel.C
No, because sides JK and ML are not twice as long as sides AB and DC.D
No, because sides JM and KL have different slopes from sides AD and BC.Did you find these answers helpful?
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