Lesson Quiz - Dilation

Name:

1. Which word would best describe an image dilated by factor of 3.5?

• ENLARGEMENT
• REDUCTION
• UNCHANGED

2. Which word would best describe an image dilated by factor of 0.2?

• ENLARGEMENT
• REDUCTION
• UNCHANGED

3. Which word would best describe an image dilated by factor of 1?

• ENLARGEMENT
• REDUCTION
• UNCHANGED

4. What have you noticed with the image A'B'C' when the scale factor (k) of dilation = 2?

• Image enlarge
• Image reduce
• Image overlap (same) the pre-image
• Image changes its shape and size

5. What have you noticed with the image A'B'C' when the scale factor (k) of dilation = 1?

• Image enlarge
• Image reduce
• Image overlap (same) the pre-image
• Image changes its shape and size

6. What have you noticed with the image A'B'C' when the scale factor (k) of dilation = 0.5?

• Image enlarge
• Image reduce
• Image overlap (same) the pre-image
• Image changes its shape and size

7. If you want the image to be enlarged, then you will choose a scale factor of...

• k = 5
• k = 1
• k = -5
• k = 0

8. If you want the image to be reduced, then you will choose a scale factor of...

• k = 2.3
• k = 0.7
• k = -1.5
• k = 0

9. What would be the image of a point A (2, -4) dilated by factor of 2?

• A' (4, -8)
• A' (-4, 8)
• A' (4, 8)
• A' (-4, -8)