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What is the scale factor of the dilation?

Under a dilation, the point (6, 18) is moved to (3, 9). What is the scale factor of the dilation? a 0.2 b 0.5 c 2.0 d 3.0 Triangle ABC has vertices at (-1, 3), (2, 1), and (-2, -1). Using triangle ABC as the pre-image and the origin as the center of dilation, which of the following is not a coordinate of a dilation that uses a scale factor of 4? a (4, 12) b (-4, 12) c (8, 4) d (-8, -4)T ɾąքҽ zoid ABCD has vertices at (-3, -3), (-3, 4), (-5, 3), and (-5, -1). Using t ɾąքҽ zoid ABCD as the pre-image and the origin as the center of dilation, what are the coordinates of a dilation that uses a scale factor of -2? a (-6, -6), (-6, 8), (-10, 6), and (-10, -2) b (-3/2, 3/2), (-3/2, 2), (-5/2, 3/2), and (-5/2, -1/2) c (3/2, -3/2), (3/2, -2), (5/2, -3/2), and (5/2, 1/2) d (6, 6), (6, -8), (10, -6), and (10, 2)
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Raymond Moen

Feb 20, 2025

< For my K12 fam >1 – Under a dilation, the point (6, 18) is moved to (3,9). What is the scale factor of the dilation?Answer: 0.52 – Triangle ABC has vertices at (-1, 3), (2, 1) and (-2, -1). Using triangle ABC as the pre-image and the origin as the center of dilation, which coordinate point is not a coordinate of a dilation that uses a scale factor of 4?Answer: (4, 12)3 – T ɾąքҽ zoid ABCD has vertices at (-3, -3), (-3, 4), (-5, 3), and (-5, -1). Using t ɾąքҽ zoid ABCD as the pre-image and the origin as the center of dilation, what are the coordinates of a dilation that uses a scale factor of -2? Answer: (6, 6), (6, -8), (10, -6) and (10, 2)4 – What is the scale factor used to create the dilation?Answer: 25 – Study the red pre-image and the associated blue dilation image. What is the scale factor used to create the dilation?Answer: -3... Show More
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