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GEO: 12-1 QC (reflections)
12.1
1. A _________ is transformation that does not change the shape or size of a figure. 
 isometry
 geometry
 motionology
 topology
12.1
2. A commonly used word to describe reflections is:
 slide  
 turn
 enlarge
 flip 
12.1
3. Tell whether the transformation appears to bea reflection. 
 Yes, reflection 
 No, not a reflection
12.1
4. Tell whether the transformation appears to bea reflection. 
 Yes, reflection 
 No, not a reflection
12.1
5. Tell whether the transformation appears to bea reflection. 
 Yes, reflection 
 No, not a reflection
12.1
6. The reflection line is also the _________of the line that connects the corresponding preimage and image points.
bisector
tangent
perpendicular bisector
parallel
12.1
7. Reflecting a coordinate across the x axis results in:
(x,y) → _________
(-x, -y)
(x, -y)
(-x, y)
(x, y)
?
12.1
8. Reflecting a coordinate across the y-axis results in:
(x,y) → _________
(-x, -y)
(x, -y)
(-x, y)
(x, y)
?
12.1
9. Reflecting a coordinate across the x=y line results in:
(x,y) → _________
(-y, -x)
(x, -y)
(-x, y)
(y, x)
?
2
-2
4
-4
6
-6
2
-2
4
-4
6
-6
8
-8
10
-10
10. Find the coordinates       of A' after a reflection       across the y-axis.     
12.1
write all coordinates
in the form of (x,y)
with no spaces
A
B
C
2
-2
4
-4
6
-6
2
-2
4
-4
6
-6
8
-8
10
-10
11. Find the coordinates       of B' after a reflection      across the line y=x.     
12.1
write all coordinates
in the form of (x,y)
with no spaces
A
B
C
2
-2
4
-4
6
-6
2
-2
4
-4
6
-6
8
-8
10
-10
12. Find the coordinates of    A' after a reflection 
      across the x-axis.
12.1
D
A
C
B
write all coordinates
in the form of (x,y)
with no spaces
2
-2
4
-4
6
-6
2
-2
4
-4
6
-6
8
-8
10
-10
13. Find the coordinates of   B' after a reflection across      the y-axis.
12.1
D
A
C
B
write all coordinates
in the form of (x,y)
with no spaces
2
-2
4
-4
6
-6
2
-2
4
-4
6
-6
8
-8
10
-10
14. Find the coordinates of   B' after a reflection across     the x-axis.
12.1
A
B
C
write all coordinates
in the form of (x,y)
with no spaces
2
-2
4
-4
6
-6
2
-2
4
-4
6
-6
8
-8
10
-10
15. Find the coordinates of    C' after a reflection over       the line y=x.
12.1
A
B
C
write all coordinates
in the form of (x,y)
with no spaces
2
-2
4
-4
6
-6
2
-2
4
-4
6
-6
8
-8
10
-10
16. Find the coordinates of    C' after a reflection across       the line y=x.        
12.1
write all coordinates
in the form of (x,y)
with no spaces
A
B
C
2
-2
4
-4
6
-6
2
-2
4
-4
6
-6
8
-8
10
-10
17. Find the coordinates of    B' after a reflection across      the x-axis.     
12.1
write all coordinates
in the form of (x,y)
with no spaces
A
B
C
2
-2
4
-4
6
-6
2
-2
4
-4
6
-6
8
-8
10
-10
18. Find the coordinates of    A' after a reflection across      the line y=x. 
12.1
write all coordinates
in the form of (x,y)
with no spaces
C
B
A
2
-2
4
-4
6
-6
2
-2
4
-4
6
-6
8
-8
10
-10
19. Find the coordinates of   A' after a reflection across     the y-axis.
12.1
write all coordinates
in the form of (x,y)
with no spaces
C
B
A
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