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CBSE Class 11-science Answered

This is from RD SharmaFind the equation of all set of pts. whose distance from (0,4) are 2/3 of their distances from the line y=9.
Asked by maria v | 24 Feb, 2015, 03:40: PM
answered-by-expert Expert Answer

E q u a t i o n space o f space t h e space l i n e space p a s sin g space t h r o u g h space left parenthesis 0 comma 4 right parenthesis space i s space y equals 4. D i s tan c e space o f space t h e space b e t w e e n space y equals 4 space a n d space y equals 9 space i s space 5 space u n i t s. a plus fraction numerator 2 a over denominator 3 end fraction equals 5 therefore a equals 3 E q u a t i o n space o f space t h e space l i n e space i s space y equals fraction numerator 2 a over denominator 3 end fraction plus 4 equals 6 T h e space e q u a t i o n space o f space a l l space t h e space p o i n t s space w h o s e space d i s tan c e space f r o m space left parenthesis 0 comma 4 right parenthesis space i s space 2 divided by 3 space o f space t h e i r space d i s tan c e s space f r o m space t h e space l i n e space y equals 9 space i s space y equals 6

Answered by | 24 Feb, 2015, 06:19: PM

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