1 answer:
Answer:
Step-by-step explanation:
The transformations you want are ...
- 90° CCW: (x, y) ⇒ (-y, x)
- reflection over x-axis: (x, y) ⇒ (x, -y)
- translation by your rule: (x, y) ⇒ (x+6, y-1)
Taken together, these make the transformation ...
(x, y) ⇒ (-y+6, -x-1)
So, your points become ...
A(0, 0) ⇒ A'(6, -1)
B(8, 1) ⇒ B'(5, -9)
C(5, 5) ⇒ C'(1, -6)
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The attachment shows the original triangle in red and the progression to the final triangle in blue.
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