Dilations

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8.3.C

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8.3.C

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8.3.C

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8.3.C

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8.3.C

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8.3.C

The black triangle has been dilated by a scale factor of 2, which triangle is it's image?

• green triangle

• red triangle 

• black triangle 

• none of these 

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CCSS.8.G.A.3

The red triangle has been dilated by a scale factor of 1/4, which triangle is it's image? 

• green triangle 

• red triangle 

• black triangle

• none of these 

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CCSS.8.G.A.3

Dilate the figure by a scale factor of 3 with the origin as the center of dilation. What are the coordinates of the image?

• A'(9,9) B'(18,18) C'(27,9)

• A'(6,6) B'(9,9) C'(12,6)

• A'(0,0) B'(3,3) C'(6,0)

• A'(1,1) B'(2,2) C'(3,1)

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CCSS.8.G.A.3

Choose the correct algebraic representation to explain the effects on this dilated figure.

• (x,y)  ⋗ (2.5x, 2.5y)

• (x,y)  ⋗ (1.5x, 1.5y)

• (x,y)  ⋗ (3.5x, 3.5y)

• (x,y)   ⋗ (4x, 4y)

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CCSS.HSG.CO.A.2