SOLUTION: What's the slope of the line containing the points (-3,4) and (-3,-7)

Question 81873: What's the slope of the line containing the points (-3,4) and (-3,-7)
Found 2 solutions by checkley75, tutor_paul:
Answer by checkley75(3666) (Show Source): You can put this solution on YOUR website!
SLOPE=(Y2-Y1)/(X2-X1)
(-7-4)/(-3+3)
-11/0 THUS THE SLOPE IS A VERTICLE LINE THROUGH THE POINT X=3.
Answer by tutor_paul(519) (Show Source): You can put this solution on YOUR website!
The slope of a line is defined by , where "rise" is the change in y, and "run is the change in x. In other words, slope = (delta y)/(delta x).
In this problem, you are given 2 points through which the line passes. This is all you need to know to find the slope. Just take (delta y)/(delta x) as follows:

You can see that you are getting a zero in the denominator. That is not the end of the world, it just means that this line has an infinite slope, which means that it is a vertical line. Another way to refer to the slope of a vertical line is to say that the slope is "undefined."
Good Luck,
tutor_paul@yahoo.com
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