Answer:
(a) (-4, -6)
(b) (4, 6)
Step-by-step explanation:
(a) When a point is reflected across the x-axis, the x-coordinate stays the same and the y-coordinate is negated. (-4, 6) is reflected to (-4, -6).
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(b) When a point is reflected across the y-axis, the y-coordinate stays the same and the x-coordinate is negated. (-4, 6) is reflected to (4, 6).