Asked by sydney

I need to find the slope of a line that is parallel to the x-axis, completely perpendicular. The answer choices are
A. 0
B. 1
C. undefined
D. infinity

I'm thinking undefined?
Answered by Reiny
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.
Answered by sydney
The line is straight up & down
Answered by sydney
Okay, I meant parallel to the y-axis, so sorry
Answered by sydney
So is the answer C?
Answered by Anon
A vertical line has a slope of 0
Answered by Reiny
NOOO!
A vertical line has an undefined slope.
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