Question 320634
<font face="Garamond" size="+2">


The slope is given by:


*[tex \LARGE \ \ \ \ \ \ \ \ \ \ m\ =\ \frac{y_1\ -\ y_2}{x_1\ -\ x_2} ]


If the denominator is zero, the slope is undefined.


John
*[tex \LARGE e^{i\pi} + 1 = 0]
</font>