The reflection point of A(2, 5) in the y axis is (k, m). The value of k + m is ___.

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-3

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-4

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Solution

The correct option is A
3

If the reflection is on the y axis, y - coordinate remains the same and the sign of x coordinate changes.

The reflection point of A(2, 5) in the y axis is (-2, 5).
Therefore, k = -2 and m = 5.
k + m = 3

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