# What is the slope and y-intercept of the line #x=-6#?

##### 1 Answer

Jun 12, 2016

The line is vertical.

It does not have a y-intercept at all.

The gradient is undefined (infinite).

This vertical line does not cross the

#### Explanation:

It does not cross the y-axis at all, so there is no y-intercept.

Lines which are vertical are said to have an infinite or undefined gradient.

The definition of gradient is

As there is no change in the x-values the denominator would be 0.

Vertical lines are only ones which cannot be written in the standard form of