Question

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

Answer 1

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