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Which glide reflection describes the mapping ΔABC → ΔDEF?

a. (x, y) → (x, y + 6) and reflected across y = 0

b. (x, y) → (x + 7, y) and reflected across x = 0

c. (x, y) →(x + 6, y + 1) and reflected across y = 0

d. (x, y) → (x + 6, y – 1) and reflected across x = 0

What is the angle of rotation counterclockwise about the spinner’s center that maps label g to label B?

a. 144°

b. 216°

c.180°

d. 108°

1.D

2.a.............................................................................................................................................................

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