Transformations

Reflections

Name: ______________________________Date: ______________Score: ______ / 20

1.
When you reflect a shape in a mirror line, the reflected shape is:
1. Abigger than the original
2. Bsmaller than the original
3. Cthe same size as the original
4. Da different shape
2.
A vertex is 3 squares to the left of a vertical mirror line. Where is its reflection?
1. A3 squares to the right
2. B3 squares to the left
3. C6 squares to the right
4. Don the mirror line
3.
A point is 4 squares from a mirror line. Its reflection is 4 squares from the line on the other side. How many squares apart are the point and its reflection?
4.
A point is 5 squares from a mirror line. How many squares from the line is its reflection?
5.
A point and its reflection are the same distance from the mirror line.
True False
6.
Reflecting a shape makes it bigger.
True False
7.
A mirror line that goes straight across, from side to side, is called a:
1. Ahorizontal mirror line
2. Bvertical mirror line
3. Cdiagonal mirror line
4. Dcurved mirror line
8.
A mirror line that goes straight up and down is called a:
1. Adiagonal mirror line
2. Bvertical mirror line
3. Chorizontal mirror line
4. Dsloping mirror line
9.
A mirror line that goes at a slant is called a:
1. Ahorizontal mirror line
2. Bvertical mirror line
3. Cdiagonal mirror line
4. Dflat mirror line
10.
A reflection flips a shape to make a mirror image.
True False
11.
On a number line, a vertical mirror line is at 8. A point is at 5. Its reflection is the same distance the other side. Where is the reflection?
12.
A vertical mirror line is at 6. A point is at 2. Where is its reflection?
13.
A vertical mirror line is at 4. A point is at 7. Where is its reflection?
14.
A point at x = 3 is reflected in a vertical mirror line on the y-axis (x = 0). What is the x-coordinate of the reflection?
15.
A point at x = -2 is reflected in a vertical mirror line on the y-axis (x = 0). What is the x-coordinate of the reflection?
16.
The point (2, 3) is reflected in a vertical mirror line at x = 4. It is 2 squares left of the line, so the reflection is 2 squares right. The height stays the same. What are the reflection's coordinates?
1. A(6, 3)
2. B(6, -3)
3. C(2, 3)
4. D(4, 3)
17.
When you reflect a point in a vertical mirror line, its height (y-coordinate) stays the same.
True False
18.
When you reflect a point in a horizontal mirror line, how far across it is (its x-coordinate) stays the same.
True False
19.
A point is 3 squares above a horizontal mirror line. How many squares below the line is its reflection?
20.
A point is at height y = 5. A horizontal mirror line is at y = 2, so the point is 3 above it. Where (which y-value) is its reflection?

Answer key

Transformations — Reflections

1.C. the same size as the original
2.A. 3 squares to the right
3.8
4.5
5.True
6.False
7.A. horizontal mirror line
8.B. vertical mirror line
9.C. diagonal mirror line
10.True
11.11
12.10
13.1
14.-3
15.2
16.A. (6, 3)
17.True
18.True
19.3
20.-1