What is the slope of the line through the points (5, 2) and (5, -3)

Question

anonymous · Answer

Describe the line through these points

anonymous · Answer

You should always start with the slope formula,$$m=\frac{ y2-y1 }{ x2-x1 }$$ however there are two situations where it will give you weird answers. 
If slope comes out as 0, then it's a horizontal line. 
If slope comes out as undefined (divide by zero) then it's a vertical line.

anonymous · Answer

im confused

anonymous · Answer

Did you try substituting the values of the points into the formula? 
What do you get?

anonymous · Answer

Say (5,2) is point 1
Say (5,-3) is point 2
The formula will now be:
$$m=\frac{ -3-2 }{5-5 }=\frac{ -5 }{ 0 }$$
Division by 0 is undefined. So this means, the line that goes through those points is vertical.
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