Please find it freind. Pleeeeeeeeeerse.
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Answer :
p = 2 , q = -3
Explanation:
It is given that,
(3,-1) and (6,1) points lie on
the line px+qy=9 .
i) Substitute (3,-1) in given
equation,
p×3 +q×(-1)=9
=> 3p-q=9 -------( 1 )
ii) substitute (6,1) in the equation,
p×6+q×1=9
=> 6p+q=9 -----( 2 )
Add equations (1) and (2) ,
we get
9p = 18
=> p = 18/9
=> p = 2
put p = 2 in equation (1),we
get
=> 3×2 - q = 9
=> 6 - q = 9
=> -q = 9 - 6
=> -q = 3
=> q = -3
Therefore,
p = 2 , q = -3
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