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SOLUTION: For what value of 'c' is 'ax - by= c' a direct variation?
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Question 26730
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For what value of 'c' is 'ax - by= c' a direct variation?
Answer by
venugopalramana(3286)
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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