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Which series of transformations will not map figure H onto itself?
A. O(x+0, y-2), reflection over y = 1
B. O(x+2, y-0), reflection over x=3
C. O(x+3, y+3), reflection over y = -x +7
D. O(x-3, y-3), reflection over y = -x +2
The correct option is Option D: the series of transformation O(x-3, y-3), reflection over y = -x +2 will not map figure H onto itself.
Here given a square with its 4 vertices at coordinates (2,1), (1,2), (2,3) and (3,2).
By checking all the options
Option A:
1st transformation (x+0, y-2) will map 4 vertices of the square into points of coordinates such as
(2,1) β (2,-1)
(1,2) β (1,0)
(2,3) β (2,1)
(3,2) β (3,0)
next transformation which is the reflection over y=1 gives the coordinates (x,2-y)
(2,-1) β (2,3)
(1,0) β (1,2)
(2,1) β (2,1)
(3,0) β (3,2)
These new points are exactly the same as the vertices of the initial square.
Option B:
1st transformation (x+2, y-0) will map 4 vertices of the square into points of coordinates such as
(2,1) β (4,1)
(1,2) β (3,2)
(2,3) β (4,3)
(3,2) β (5,2)
next transformation which is the reflection over x=3 gives the coordinates (6-x,y)
(4,1) β (2,1)
(3,2) β (3,2)
(4,3) β (2,3)
(5,2) β (1,2)
These new points are exactly the same as the vertices of the initial square.
Option C:
1st transformation (x+3, y+3) will map 4 vertices of the square into points of coordinates such as
(2,1) β (5,4)
(1,2) β (4,5)
(2,3) β (5,6)
(3,2) β (6,5)
next transformation which is the reflection over y=-x+7 gives the coordinates such as
(5,4) β (3,2)
(4,5) β (2,3)
(5,6) β (1,2)
(6,5) β (2,1)
These new points are exactly the same as the vertices of the initial square.
Option D:
1st transformation (x-3, y-3) will map 4 vertices of the square into points of coordinates such as
(2,1) β (-1,-2)
(1,2) β (-2,-1)
(2,3) β (-1,0)
(3,2) β (0,-1)
next transformation which is the reflection over y=-x+2 gives the coordinates such as
(-1,-2) β (4,3)
(-2,-1) β (3,4)
(-1,0) β (2,3)
(0,-1) β (3,2)
These new points are not matching with the vertices of the initial square.
Therefore the correct option is Option D: O(x-3, y-3), reflection over y = -x +2 will not map figure H onto itself.
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