Given that point (x, 14-y) and point (- 1-y, 2x) are symmetric about y axis, then XY=
If these two points are symmetrical about the y-axis, then the abscissa is opposite to each other and the ordinate is equal
X + (- 1-y) = 0 and 14-y = 2x
The solution is: x = 5, y = 4
So, xy = 20
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