Wednesday, 5 June 2013

CO-ORDINATE GEOMETRY







Find the slope of a line which passes through (2,7) and (-7,1)

Solution

x1=2, y1=7 x2=-7 y2=1

m = y2 –y1
       x2 – x1

m =  1 –7
        -7 –2
 
m =  - 62
         - 93

m =  2
        3

Hence the slope is 2/3







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