Answer:
Number 3 and 4
Explanation:
We know a line is perpendicular to another line if their slopes are the opposite reciprocals of each other
From the equation of 3x-y=10, we write this in slope-intercept form as
y=3x-10
Therefore, the slope of this line is 3
The opposite reciprocal of 3 is -1/3
Looking at the answer choices, 3 and 4 have slopes of -1/3