Which two points lie on a line with an undefined slope?
2 answers:
Slope formula is
m = (y2 - y1)/(x2 - x1)
A. m = (5 - 0)/(-2 + 2)
m = (5)/(0)
m = error
B. m = (-2 - 0)/(0 + 2)
m = (-2)/(2)
m = -1
C. m = (2 - 0)/(2 - 0)
m = (2)/(2)
m = 1
D. m = (0 - 0)/(2 - 3)
m = (0)/(-1)
m = 0
the undefined slope would be the one that came out as error, so A
Answer:
Option A. 
and 
Step-by-step explanation:
we know that
A vertical line has an undefined slope
The lines parallel to the y-axis are vertical lines
The points that lie on a vertical line has the same x-coordinate
In this problem
the points and has the same x-coordinate
therefore
The points lie on a line with an undefined slope (vertical line)
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