The reflection of the point A(2, 5) about X = 0 is (k, m). The value of k+m is ___.

(-2,5)

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(2,-5)

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(2,2)

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(5,5)

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Solution

The correct option is A (-2,5)
Reflection about X = 0,
Y - coordinate remains the same.
X - coordinate's sign changes.
The reflection point of A(2, 5) about X = 0 => (-2, 5).
Therefore, k = -2 and m = 5.
k + m = 3

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