Answer
The coordinates of point X is -5.
Step-by-step explanation
Let the coordinate of point X be x.
The coordinate of point F is 5.
The coordinate of point D is 1.
We are then told that FX:XD = 5:3
FX will be (5 - x)
XD will be (1 - x)
So, that ratio given will be
(5 - x):(1 - x) = 5:3
Hence, the coordinates of point X is -5.
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