SOLUTION: For what value of 'c' is 'ax - by= c' a direct variation?

SOLUTION: For what value of 'c' is 'ax - by= c' a direct variation?

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Question 26730: For what value of 'c' is 'ax - by= c' a direct variation?
Answer by venugopalramana(3286) (Show Source): You can put this solution on YOUR website!
WE SAY X VARIES DIRECTLY AS Y IF X=K*Y,WHERE K IS A CONSTANT..HERE WE HAVE
AX-BY=C..OR...AX=BY+C...OR...X=(BY+C)/A = (B/A)Y+(C/A)..BUT FOR DIRECT PROPORTION X=K*Y...HENCE C/A=0...OR...C=0
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