Answer: y=2/4x+6
I think it´s right sorry if it is´nt
2,-3 is the answer if it's just a point
It will take 6.875h for the second car to overtake the first...
Those are going to change to positive values due to the property being used
the order would be
18 , 18 , 19 , 20 , 22 , 30