Dilations 2

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

What is the scale factor from the small shape to the big shape?

• 1/2
• 7/3
• 2
• 10/3

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)

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)

Find the scale factor used to dilate figure ABC.

• ¹/₂

• 3

• ¹/₃

Find the scale factor used to dilate figure ABC.

• 2

• ¹/₂

• ¹/₃

Find the scale factor used to dilate figure PQR.

• ¹/₂

• 3

• ¹/₃