What is the slope in the equation x = 6

The slope is undefined

The slope is undefined

Step-by-step explanation:

x = c, where c is any real number, is a vertical line.

Slope is defined as (change in y) / (change in x).

On the x-y axis, with a vertical line, there is no change in the x value, so the change in x equals zero. So you have ...

(change in y) / 0

You can't divide by zero, so we say the value is undefined.

x = 6 means that all x values for this line are 6. So only the y values change