Dilations and Scale Factor Quiz

What is a dilation in geometry?

• A transformation that changes the position of a figure

• A transformation that changes the number of sides of a figure

• A transformation that changes the color of a figure

• A transformation that changes the size of a figure but not its shape.

Tags

CCSS.8.G.A.3

How does the scale factor affect the size of a figure in a dilation?

• It has no effect on the size of the figure

• It rotates the figure

• It changes the color of the figure

• It either enlarges or reduces the size of the figure.

Tags

CCSS.8.G.A.3

If the scale factor is greater than 1, what happens to the size of the figure in a dilation?

• It decreases

• It stays the same

• It becomes a different shape

• It increases

Tags

CCSS.8.G.A.3

If the scale factor is between 0 and 1, what happens to the size of the figure in a dilation?

• The size of the figure increases

• The size of the figure remains the same

• The size of the figure decreases

• The size of the figure becomes a negative value

Tags

CCSS.8.G.A.3

How do you calculate the scale factor when given the original and dilated figures' measurements?

• Add the corresponding measurements of the dilated figure to the original figure.

• Subtract the corresponding measurements of the dilated figure from the original figure.

• Divide the corresponding measurements of the dilated figure by the original figure.

• Multiply the corresponding measurements of the dilated figure by the original figure.

Tags

CCSS.7.G.A.1

If the scale factor is 2, and the original figure has coordinates (3, 4), what are the coordinates of the dilated figure?

• (6, 8)

• (1.5, 2)

• (9, 12)

• (5, 7)

Tags

CCSS.8.G.A.3

If the scale factor is 0.5, and the original figure has coordinates (6, 8), what are the coordinates of the dilated figure?

• (2, 3)

• (4, 6)

• (3, 4)

• (9, 12)

Tags

CCSS.8.G.A.3

How can you use the scale factor to perform a dilation on a given figure?

• Subtract the scale factor from the coordinates of the figure

• Multiply the coordinates of the figure by the scale factor

• Divide the coordinates of the figure by the scale factor

• Add the scale factor to the coordinates of the figure

Tags

CCSS.8.G.A.3

What happens to the size of a figure in a dilation if the scale factor is less than 0?

• The size of the figure increases

• The size of the figure remains the same

• The size of the figure decreases

• The figure disappears

Tags

CCSS.8.G.A.3

If the scale factor is 3, and the original figure has coordinates (2, 5), what are the coordinates of the dilated figure?

• (6, 15)

• (5, 10)

• (1, 3)

• (4, 8)

Tags

CCSS.8.G.A.3