did you plot the points? both have -3 for the x-coordinate, so the line is vertical.
did you do the actual calculation? change in y divided by change in x?
(-6 - -5)/(-3 - -3) = -1/0 is undefined.
The slope of the line that goes through(-3,-5) and (-3,-6) is?
Positive ••
Negative
Zero
Undefind
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