Dilations About Point

State the coordinates of point A after a dilation, with the center of dilation at (0,0), and a scale factor of 1/2.

• (2,2)

• (8,8)

• (0,12)

• (4,12)

Tags

CCSS.8.G.A.3

The red triangle has been dilated by a scale factor of 1/4, with the center of dilation at (0,0), which triangle is it's new image? 

• green triangle 

• red triangle 

• black triangle

• none of these 

Tags

CCSS.8.G.A.3

Where is the center of dilation?

• (0, 0)

• (3, 1)

• (1, 1)

• (4, 3)

Tags

CCSS.HSG.CO.A.2

Which of the following statements is true about the scale factor (k) for this dilation?

Tags

CCSS.8.G.A.3

In this figure, triangle ABC is the ​ (a)   and triangle A'B'C' is the ​ (b)   . The scale factor for this dilation is ​ (c)   . A(n) ​ (d)   occurred.

• pre-image

• image

• 2

• reduction

• enlargement

• None of the above

• 1/2

Tags

CCSS.8.G.A.3

What is the correct scale factor for this dilation?

• 2.5

• 1.5

• 3.5

• 4

Tags

CCSS.HSG.CO.A.2

State the coordinates of point B after a dilation, with the center of dilation at the origin, and a scale factor of 1/2.

• (1.5,-4)

• (-1.5,1)

• (-1,-1.5)

• (-2,-2)

Tags

CCSS.8.G.A.3

If the scale factor is between zero and one, the new figure will be

• an enlargement

• a reduction

• a scale factor

• bigger

Tags

CCSS.8.G.A.3

What are the coordinates for the center of dilation?

• (0, 0)

• (4.5, 5.5)

• (3, 2)

• (6.5, 4)

Tags

CCSS.8.G.A.3

Which of the following algebraic rules represents an enlargement? Select all that apply.

• (x, y) --> (3x, 3y)

• (x, y) --> (0.5x, 0.5y)

• (x, y) --> (0.75x, 0.75y)

• (x, y) --> (0.999x, 0.999y)

• (x, y) --> (5x, 5y)

Tags

CCSS.8.G.A.3