Chapter 12 Answers (continued)

Chapter 12 Answers (continued)
5.
Reteaching 12-7
1. Check students’ work.
2.
4
y
2
4 2 O
2
2 4
x
line symmetry in the dashed
lines, rotational symmetry
around points, translational
symmetry, glide reflectional
symmetry
5.
1
2
6. y =
1
x + 2
6
K
4
2
J
6 4 2 0
2
J'
4
6
7.
4
y
L
L'
2 4 6 x
K'
y
4
T'
2
3.
4.
4
2
y
4 O 2 4
2
4
x
4
y
6 4 2 0
Q'
2
Q
T
y =-4
8.
4
6
8
6
y
R'
R
2 S' 4 6x
S
E'
5.
12
10
6
4
2
86
2 2 4 6 8 x
4
6
8
10
12
y
2
12 8 6 4 2 O 2 4 6 8 12x
2
4
y =-x
9.
D
6
4
2
6 4 0
B
2
C
D
D'
A
4
2
6 4 2 0
2
F
E
4
6
4
y
F'
2 4 6x
A'
2 6
B'
C'
D'
x
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Enrichment 12-1
1. (-3, -1) 2. (-1, 0) 3. (5, 3)
x 1
1 x 2
y 1
1 y 2
4. the midpoint formula: M = ( , )
2
2
6
x = 1
40 Answers Geometry Chapter 12