# What is the slope of a line perpendicular to the line whose equation is y = 2x + 5?

##### 1 Answer

May 24, 2016

#### Explanation:

The slope, or gradient, of the line

If 2 lines are perpendicular, their gradients multiply to -1.

Let us call the perpendicular gradient m.

Therefore, the slope, or gradient, of the perpendicular line is