Answer:
(9, 7)
Step-by-step explanation:
You want the coordinates of the image of point (9, -7) after it has been reflected across the x-axis.
<h3>Reflection</h3>
The image point will be as far above the x-axis as the original point is below the x-axis. The y-coordinate of -7 tells you the point is 7 units below the x-axis. The reflected point will be 7 units above the x-axis, so will have a y-coordinate of +7.
The image coordinates are (9, 7).
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<em>Additional comment</em>
Reflection across the x-axis changes the sign of the y-coordinate.
Reflection across the y-axis changes the sign of the x-coordinate.
