Question

Which of the following are perpendicular to the line y=-1/3x+5 (three answers)
3x-y=2
y=3x
3x+y=5
1/3x-y=3
3x-y=6

Answer 1

Perpendicular means opposite reciprocal. So given that our initial slope is -1/3, perpendicular to that is 3. Which one of these has a slope of 3.

3x - y = 2; y = 3x; 3x - y = 6
Hopes this helps!