ANSWER
x = 8
Step-by-step explanation
We have that the line K, that passes through (8, 3) is vertical.
The general equation for a vertical line is given as:
x = a
Note: the line passes through (a, b)
This means that regardless of the value of y, x remains constant.
Therefore, the equation of the vertical line that passes through (8, 3) is:
x = 8