I would say that the unfinished puzzle has more than one piece and the missing piece is only one, itself.
If point Y is between points X and Z, then
XY + YZ = XZ
In words, the distance from X to Y, plus the distance from Y to Z, is equal to the distance from X to Z. (See the attached picture.)
So 6b + 8b = 175
Can you finish it?
The top graph is correct because an x=# will create a vertical line at that #
Answer: They would be Parrellel
Step-by-step explanation: