If a point and its reflection across the x-axis are (k, 5) and (k, -5), and the same point reflected across the y-axis is (-3, 5), what is the value of k?

Question

Accepted Answer

3. Reflection across the y-axis of (k, 5) is (-k, 5). Given this equals (-3, 5), so -k = -3, giving k = 3.

If a point and its reflection across the $x$ -axis are (k, 5) and (k, -5), and the same point reflected across the $y$ -axis is (-3, 5), what is the value of k?

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