Exploring Dilations and Scale Factors in 8th Grade Math

What is the scale factor for an enlargement?

• Greater than 1

• Equal to 1

• Less than 1

• Zero

If the scale factor is three halves, what type of dilation occurs?

• No change

• Cannot be determined

• Enlargement

• Reduction

How do you calculate the new coordinates in a dilation?

• Multiply each coordinate by the scale factor

• Add the scale factor to each coordinate

• Subtract the scale factor from each coordinate

• Divide each coordinate by the scale factor

What is the new x-coordinate of point A if the original is -2 and the scale factor is three halves?

• -3

• 0

• 3

• -1

How do you find the scale factor between two dilated figures?

• Subtract the coordinates of the original from the new

• Divide the coordinates of the new by the original

• Add the coordinates of the original to the new

• Multiply the coordinates of the original by the new

What does a scale factor of 2 to 1 indicate about the dilation?

• Reduction

• No change

• Cannot be determined

• Enlargement

What is the new y-coordinate of point B if the original is 3 and the scale factor is 1/2?

• 1.5

• 1

• 6

• 0.5

If the original coordinate is 3 and the scale factor is 1/2, what is the new coordinate?

• 0.5

• 3

• 6

• 1.5

What does a scale factor of two-thirds indicate?

• No change

• Reduction

• Cannot be determined

• Enlargement

How do you verify if a dilation is a reduction?

• The scale factor is less than 1

• The scale factor is greater than 1

• The scale factor is zero

• The scale factor is equal to 1