Answer:
Slope is undefined.
Step-by-step explanation:
Slope of 0 is a horizontal line.
Slope of undefined is a vertical line.
Any other slope is something in between.
(A) undefined
Here’s a little trick
If the line is horizontal, the slope is always 0
While if the line is vertical, the slope is always undefined.
In other words, if you can walk on the line, its 0 if you can’t its undefined
20 miles
The drawings will help
Hundred Thousand's Place
