Scale Factor, Similar Figures, Slope

What is Dilation?

• Dilation means to enlarge or reduce
• Dilation means to reflect on something
• Dilation means to like something
• Dilation means to make something different by making it smaller

Which transformation does not preserve congruence? (which does not keep it the same).

• translation

• reflection

• rotation

• dilation

Triangle ABC is dilated using (0, 0) as center and a scale factor of 1/2. Where is the image of Point B?

• (1.5,-4)

• (-1.5,1)

• (-1,-1.5)

• (-2,-2)

Triangle ABC is dilated using center (0, 0) and a scale factor of 2. Where is the image of Point C?

• (12,0)

• (12,12)

• (4,3)

• (6,4)

Which side length corresponds with EF?

• NO

• LM

• OL

• EH

What scale factor takes triangle SQR to triangle FDE?

• 1/3

• 3

• -24

• 1/2

Are these figures similar?

• yes

• no

Triangle ABC was dilated using (0, 0) as center, creating triangle A'B'C'. What scale was used?

• 2

• 1/2

• 1/3

• 1/4

Find the slope of the line.

• 1/4

• 5

• 1/5

• 4/1

Find the slope

• 5/2

• 7

• 2/5

• 1/7