Scale Factor

If the scale factor is less than one, the new figure will be

• an enlargement
• a reduction
• a scale factor
• bigger

Tags

CCSS.8.G.A.3

If the scale factor is greater than one, the new figure will be

• a reduction
• an enlargement
• a scale
• not proportional

Tags

CCSS.8.G.A.3

 What is the scale factor of the dilation of A to B?

• $\frac{4}{3}$

• $\frac{3}{4}$

• 3

• 4

What is the scale factor of the dilation of ABC to XYZ?

• $\frac{2}{3}$

• $\frac{3}{2}$

• 2

• 3

What is the scale factor in the algebraic representation
(x,y) to (2x,2y)

• k=2
• k=1/2
• k=2.2
• k=0.5

Tags

CCSS.7.G.A.1

Which is an example of a reduction?

• k = 1/2
• k = 1
• 3:2
• 250%

Tags

CCSS.7.RP.A.3

Which is an example of an enlargement?

• k = 1/2
• k = 1
• 2:3
• 2.5

Tags

CCSS.8.G.A.3

The point (8, 12) was dilated to become point (2, 3). What was the scale factor?

• ½
• ¼
• 4
• 2

Tags

CCSS.8.G.A.3

How do you write the algebraic notation when the scale factor is 1/2?

• (x, y) goes to (2x, 2y)
• (x, y) goes to (1/2x, 1/2y)
• (x, y) goes to (-2x, -2y)
• (x, y) goes to (2x, 1/2y)

Tags

CCSS.8.G.A.3

Which of the following is the algebraic representation for a dilation?

• (x, y) → (x, 3y)
• (x, y) → (3x, 3y)
• (x, y) → (x, y - 3)
• (x, y) → (.5x, .4y)

Tags

CCSS.8.G.A.3