Question

Consider the line y=2/5x. What is the slope of a line perpendicular to this line?

What is the slope of a line parallel to this line?

Answer 1

- 5/2

Explanation:

If the slope of a line is m then the slope of the perpendicular line is -1/m

The slope of y = 2/5 x is 2/5

Slope of perpendicular line = - 5/2