Find the slope, if it exists, of the line containing the pair of points (5,-9) and (5,-10)
Select the correct choice bellow and, if necessary, fill in the answer box to complete your choice.
A) The slope of the line is___
b)The slope is undefined

Question

Find the slope, if it exists, of the line containing the pair of points (5,-9) and (5,-10)
Select the correct choice bellow and, if necessary, fill in the answer box to complete your choice.
A) The slope of the line is___
b)The slope is undefined

anonymous · Answer

Check the x coordinates of both points.

tyteen4a03 · Answer

The slope of a vertical line (x coordinate of both points are equal) is undefined.

parthkohli · Answer

$$Slope = {\text{change in }y \over \text{change in }x} $$
Whatever the change in y is, first look at the change in $x$.

$$\implies {\text{change in }y \over 0} $$Do you $\textbf{really}$ think that the slope exists?

anonymous · Answer

Another way to think of it is that if it's a straight line and it passes through x=5 for both points, then x=5 all the time. There is no y in the equation x=5, so there's no way to put it into y=mx+b form. That implies that there is no (defined) slope.