prove that the points (4,-5),(1,1)and(-2,7)are collinear.
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Step-by-step explanation:
step 1: section formula
y2 -y1/x2 - x1
step2:therefore,
1-(-5)/1-4
=6/-3
=-2 ...... _ equation 1
step3: now
= 7-1/(-2)-1
= 6/-3
=-2......... _equation 2
from equation (1) & (2) ......
•°• both the values are equal..
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