Question 1116730
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The given point (-2,7) is 3 units to the left of the line x=1.<br>
When the point is reflected in the line x=1, the y value stays the same; the x value moves to the opposite side of the line, the same distance as before.<br>
3 units to the right of the line x=1 means 6 units to the right of the original point, so the new point is (4,7).