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The intercept cut off from $y$-axis is twice that from $x$-axis by the line and line is passes through $(1,2)$ then its equation is
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Verified Answer
The correct answer is:
$2 x+y=4$
Let the intercept be $a$ and $2 a$, then the equation of line is $\frac{x}{a}+\frac{y}{2 a}=1$, but it also passes through $(1,2)$,
therefore $a=2$
Hence the required equation is $2 x+y=4$
therefore $a=2$
Hence the required equation is $2 x+y=4$
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