Let X, Y, and Z be points such that \(\frac{XZ}{XY} = \frac{ZY}{XY} = \frac{1}{2}\). If Y=(1,7), Z=(-1,-7), then what is the sum of the coordinates of X?
+532 by drawing a graph and using some inspection, you see that z is the midpoint of y and x, so the coordinates of x are (-3, -21), and the sum of coordinates is -24.
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