Question 749005
<font face="Times New Roman" size="+2">


Calculate the slope of the line that contains the points (3,4) and (5,7).  Then calculate the slope of the line that contains the points (3,4) and (0,6).  Finally, calculate the slope of the line that contains the points (5,7) and (0,6).  If any pair of the three slopes calculated are negative reciprocals of each other, then the two lines represented are perpendicular and the triangle must be a right triangle.  Otherwise not.


John
*[tex \LARGE e^{i\pi}\ +\ 1\ =\ 0]
<font face="Math1" size="+2">Egw to Beta kai to Sigma</font>
My calculator said it, I believe it, that settles it
<div style="text-align:center"><a href="http://outcampaign.org/" target="_blank"><img src="http://cdn.cloudfiles.mosso.com/c116811/scarlet_A.png" border="0" alt="The Out Campaign: Scarlet Letter of Atheism" width="143" height="122" /></a></div>
</font>