similar figures/dilations

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(3,3) B(6,6) C(9,3)

• 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)

Tags

CCSS.8.G.A.3

Triangle PQR is similar to triangle DEF shown. Which describes the relationship between the corresponding sides of the two triangles?

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Tags

CCSS.HSG.SRT.A.2

Which must be true of a scale factor of a dilation if the image is smaller that the pre-image?

• The scale factor is positive

• The scale factor is greater than 1

• The scale factor is between 0 and 1

• The scale factor is negative

Tags

CCSS.8.G.A.3

Which side length corresponds with EF?

• NO

• LM

• OL

• EH

Tags

CCSS.HSG.CO.B.7

Two objects that are the same shape but NOT the same size are _______.

• Congruent

• Vertical

• Similar

• Complementary

Tags

CCSS.8.G.A.2

CCSS.HSG.CO.B.6

Which proportion could be used to find side 'x'?

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CCSS.HSG.SRT.A.2

Which proportion must be true?

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Tags

CCSS.HSG.SRT.A.2

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CCSS.HSG.CO.C.9

Which proportion can we use to find 'x'?

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Tags

CCSS.HSG.SRT.A.2

Which of the following algebraic expression would create an enlargement?

• (x,y) -----> (x+3,y+3)

• (x,y) -----> (-2x,-2y)

• (x,y) -----> (0.75x,0.75y)

• (x,y) -----> (2.3x,2.3y)

Tags

CCSS.8.G.A.3