Question

The slope of a line is 5, the slope of its perpendicular is ______.

विकल्प

• 5

• −5

• `1/5`

• `-1/5`

Answer 1

The slope of a line is 5, the slope of its perpendicular is `bbunderline(-1/5)`.

Explanation:

We know that,

Product of slope of two perpendicular lines = −1.

Let slope of perpendicular line be m.

∴ 5 × m = −1

⇒ m = `-1/5`