CBSE Class 10 Answered
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Asked by | 22 Feb, 2009, 09:30: PM
Expert Answer
Supose that the line divedes the line segment joining (-3,1) and ( 8,9) in the ratio k:1 in the point P(say).
So,
using the section formula, we get,
the coordinates of P are
[(-3+8k)/k+1 ,(1+9k)/k+1]
But P must lie o the line x-y-2=0
So, the coordinates of P must satisfy the equation x-y-2=0
So, substitute the coordinates of P in this equation and you will get the value of k.
That will give you the required ratio k:1
Answered by | 23 Feb, 2009, 10:24: AM
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