0.705 inches is the answer
Answer:
x = 4
Step-by-step explanation:
If you were to plot the given points, you would quickly see that this is a vertical line where x = 4 (a visual is always a good place to start).
Vertical lines have a slope that is undefined and are written in the form of x = .
If you had plugged into the slope formula
, where (
) is (4, 8) and (
) is (4,6) the result would be as follows:

= 
= 
Because you can not divide by 0, the slope is in fact undefined.