posted by sydney .
I need to find the slope of a line that is parallel to the x-axis, completely perpendicular. The answer choices are
I'm thinking undefined?
And I am thinking: Confusing and contradictory.
If parallel to the x-axis, the line must be horizontal.
Where does the "completely perpendicular" part come into play ??
Btw, a horizontal line has a slope of zero,
the slope of a perpendicular is undefined.
The line is straight up & down
Okay, I meant parallel to the y-axis, so sorry
So is the answer C?
A vertical line has a slope of 0
A vertical line has an undefined slope.