Finding Scale Factors and Centers of Dilation

What transformation is used to produce an image of the same shape but different size?

• Rotation

• Reflection

• Translation

• Dilation

Tags

CCSS.8.G.A.3

What is the scale factor used to dilate the triangle in the tutorial?

• 3

• 1

• 2

• 4

Tags

CCSS.8.G.A.3

What is the new coordinate of vertex A after dilation?

• (2, 2)

• (3, 3)

• (1, 1)

• (0, 0)

Tags

CCSS.8.G.A.3

What is the new coordinate of vertex C after dilation in the first example?

• (0, 0)

• (6, 2)

• (3, 1)

• (9, 3)

Tags

CCSS.8.G.A.3

Are the pre-image and the image similar figures after dilation?

• Yes

• No

• Only in certain cases

• Not mentioned

Tags

CCSS.8.G.A.3

How is the center of dilation found in the tutorial?

• By measuring distances

• Calculating midpoints

• Using a compass

• Connecting corresponding vertices

Tags

CCSS.8.G.A.3

What is the coordinate of the center of dilation in the first example?

• (-1, -1)

• (2, 2)

• (1, 1)

• (0, 0)

Tags

CCSS.8.G.A.3

What scale factor is used in the second problem discussed in the tutorial?

• 3

• 4

• 2

• 5

Tags

CCSS.7.G.A.1

What is the coordinate of the center of dilation in the second problem?

• (-5, 5)

• (-8, 10)

• (0, 0)

• (2, 2)

Tags

CCSS.8.G.A.3

How many times was the side length of the pre-image multiplied to get the side length of the image in the second problem?

• 4 times

• 3 times

• 2 times

• 5 times

Tags

CCSS.8.G.A.3