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OpenStudy (anonymous):
The point (2,-4) is reflected across the line y=-1. What are the coordinates of the image?
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OpenStudy (mathmale):
Welcome to OpenStudy! You might find it helpful to graph both (2,-4) and its reflection across the (horizontal) line y=-1. Try that. I'd bet the coordinates of this reflected image will then be easy for you to identify. Hint: the x-coordinate remains the same.
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