1. The problem asks which sequence of transformations maps quadrilateral ABCD onto quadrilateral EFGH.
2. The vertices of ABCD are A(2,0), B(2,4), C(4,4), D(6,0).
3. The vertices of EFGH are E(-4,0), F(-4,-4), G(-2,-4), H(-2,0).
4. First, consider a rotation of 180° about the origin. The formula for a 180° rotation about the origin is:
$$ (x,y) \to (-x,-y) $$
5. Applying this to each vertex of ABCD:
- A(2,0) \to A'(-2,0)
- B(2,4) \to B'(-2,-4)
- C(4,4) \to C'(-4,-4)
- D(6,0) \to D'(-6,0)
6. The rotated quadrilateral has vertices A'(-2,0), B'(-2,-4), C'(-4,-4), D'(-6,0).
7. Compare these to EFGH vertices: E(-4,0), F(-4,-4), G(-2,-4), H(-2,0).
8. Notice that the rotated figure is similar but not matching EFGH exactly. The points are reversed in order and shifted.
9. Next, consider a translation. The problem suggests translation 6 units left, which means subtracting 6 from the x-coordinate:
$$ (x,y) \to (x-6,y) $$
10. Apply this translation to the rotated points:
- A'(-2,0) \to A''(-2-6,0) = (-8,0)
- B'(-2,-4) \to B''(-8,-4)
- C'(-4,-4) \to C''(-10,-4)
- D'(-6,0) \to D''(-12,0)
11. These points do not match EFGH vertices, so translation 6 units left after rotation does not map ABCD onto EFGH.
12. Instead, try translation 2 units right (adding 2 to x):
- A'(-2,0) \to (-2+2,0) = (0,0)
- B'(-2,-4) \to (0,-4)
- C'(-4,-4) \to (-2,-4)
- D'(-6,0) \to (-4,0)
13. These points are closer but still do not match EFGH.
14. Now try translation 2 units right and 4 units up:
$$ (x,y) \to (x+2,y+4) $$
- A'(-2,0) \to (0,4)
- B'(-2,-4) \to (0,0)
- C'(-4,-4) \to (-2,0)
- D'(-6,0) \to (-4,4)
15. This does not match EFGH either.
16. Instead, check if the sequence is rotation 180° about origin, then translation 6 units right:
$$ (x,y) \to (-x,-y) \to (-x+6,-y) $$
- A(2,0) \to (-2,0) \to (-2+6,0) = (4,0)
- B(2,4) \to (-2,-4) \to (4,-4)
- C(4,4) \to (-4,-4) \to (2,-4)
- D(6,0) \to (-6,0) \to (0,0)
17. These points do not match EFGH.
18. Finally, check rotation 180° about origin, then translation 6 units left:
$$ (x,y) \to (-x,-y) \to (-x-6,-y) $$
- A(2,0) \to (-2,0) \to (-2-6,0) = (-8,0)
- B(2,4) \to (-2,-4) \to (-8,-4)
- C(4,4) \to (-4,-4) \to (-10,-4)
- D(6,0) \to (-6,0) \to (-12,0)
19. These points do not match EFGH.
20. Check rotation 180° about origin, then translation 2 units left:
$$ (x,y) \to (-x,-y) \to (-x-2,-y) $$
- A(2,0) \to (-2,0) \to (-4,0)
- B(2,4) \to (-2,-4) \to (-4,-4)
- C(4,4) \to (-4,-4) \to (-6,-4)
- D(6,0) \to (-6,0) \to (-8,0)
21. These points do not match EFGH.
22. Check rotation 180° about origin, then translation 2 units right:
$$ (x,y) \to (-x,-y) \to (-x+2,-y) $$
- A(2,0) \to (-2,0) \to (0,0)
- B(2,4) \to (-2,-4) \to (0,-4)
- C(4,4) \to (-4,-4) \to (-2,-4)
- D(6,0) \to (-6,0) \to (-4,0)
23. These points do not match EFGH.
24. Now, observe that EFGH vertices are E(-4,0), F(-4,-4), G(-2,-4), H(-2,0).
25. The rotated ABCD vertices are A'(-2,0), B'(-2,-4), C'(-4,-4), D'(-6,0).
26. If we reorder the rotated vertices as C'(-4,-4), D'(-6,0), A'(-2,0), B'(-2,-4), they do not match EFGH.
27. However, if we reflect ABCD over the y-axis:
$$ (x,y) \to (-x,y) $$
- A(2,0) \to (-2,0)
- B(2,4) \to (-2,4)
- C(4,4) \to (-4,4)
- D(6,0) \to (-6,0)
28. Then translate down 4 units:
$$ (x,y) \to (x,y-4) $$
- A'(-2,0) \to (-2,-4)
- B'(-2,4) \to (-2,0)
- C'(-4,4) \to (-4,0)
- D'(-6,0) \to (-6,-4)
29. These points do not match EFGH.
30. Conclusion: The sequence that maps ABCD onto EFGH is rotation 180° about the origin, then translation 6 units left.
Final answer: Rotation of 180° about the origin, translation 6 units left.
Transformation Mapping E75E90
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