<PRE><B>Question 240374</B>
The points l(4,0),M(10,0)N(7,5) form a triangle LMN. What is the sum of the slopes of the three sides of the triangle?
-----------
Slope, m = diffy/diffx
For LM:
m1 = 0/6 = 0
------
MN:
m2 = -5/3
------
LN:
m3 = 5/3
---------
Sum = zero</PRE>