Lessons 4&5 Target 3 Post-Assessment

Dilate point B by a scale factor of 3

• (12,0)
• (12,12)
• (4,3)
• (0,12)

Dilate the figure by a scale factor of 3. What are the coordinates of the image? A(3,3) B(6,6) C(9,3)

• A'(9,9) B'(18,18) C'(27,9)
• A'(6,6) B'(9,9) C'(12,6)
• A'(0,0) B'(3,3) C'(6,0)
• A'(1,1) B'(2,2) C'(3,1)

What is the formula for scale factor?

• New/old
• old/new
• I don't know

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

• 2
• 3
• 2/3
• 3/2

What is a dilation?

• The process of making a polygon larger or smaller without changing its shape
• The process of making a polygon move up, down, left, or right without changing its shape or size
• The process of making a polygon flip over an invisible line without changing its shape or size
• The process of making a polygon turn along quadrants without changing its shape or size

Triangle ABC is dilated using a scale factor of 1/2. The center of dilation is at the origin. What are the new coordinates of point A'?

• (-3, 3)
• (-12, 12)
• (-2, 2)