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Show that the straight  lines given by (a+2b)x+(a+3b)y=a+b for different values of a and b pass through a fixed point (2,-1).

Sanjana , 7 Years ago
Grade 10
anser 1 Answers
Arun

Last Activity: 7 Years ago

Dear Sanjana
 
Put the value of (x, y) as (2, -1) in the equation,
You will get LHS as (a+b), whichbis equal to the RHS
Hence it is proved that this line pass through a fixed point (2, -1) for different value of a and b.
 
Regards
Arun (askIITians forum expert)

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