Answer:
-1/5
Explanation:
Perpendicular lines are lines which have a specific relationship. The slopes of the two lines are negative reciprocals of each other. We can find the slope easily in slope-intercept form, y=mx+b.
Since our equation is already in slope intercept form then y=5x-2 has a slope of 5.
The slope of the perpendicular line will be -1/5. This is the negative reciprocal of 5.