<PRE><B>Question 29171</B>
find the slope for (7,-2)&amp;(-5,1)
find the slope for (7,-2)&amp;(-5,1)
 The slope of the line joining two given points P(x1,y1) and Q(x2,y2)
is given by  
slope = m = (y2-y1)/(x2-x1)  ----(*)
Therefore the slope of the line joining P(7,-2) and Q(-5,1)
is given by 
slope = [1-(-2)]/[(-5)-(7)]= (1+2)/(-5-7) = 3/(-12) = (-1/4)
Answer: slope = (-1/4)
Note: Here P(x1,y1)=P(7,-2) giving x1=7 and y1= -2
and Q(x2,y2)=Q(-5,1) giving x2=-5 and y2=1

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