A point has the coordinates open paren m comma 0 close paren and m is not equal to 0 Which reflection of the point will produce an image located at open paren 0 comma negative m close paren ?

Reflecting a point across the line y = −x changes its coordinates by the rule (x, y) → (−y, −x). Applying that rule to (m, 0) gives (0, −m), the desired image. The other choices do not produce those coordinates when m is nonzero.

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