Question 68345
The Line is parallel to the x-axis and passes through the point (1/5, -4).

When the Line is parallel to the x-axis the new line form a vertical line and we all know that vertical lines has no slope or undefined.  Plot the point given and undefined slope suggests that you can move units up or down but you cannot move units right or left. 
 
So your equation is
x = 1/5