# Ratio of division

In what ratio is the line joining $(4,5)$ and $(1,2)$ is divided by the y-axis?

The solution given in my module assumed the ratio to be $K:1$,this might be very trivial but I can't convinced myself why the consequent is assumed to be $1$?

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You can always assume it to be 1 ($K$ will be then just not necessarily a whole number). –  Fabian Mar 25 '11 at 10:42
@Fabian:Got it! Thanks :-) –  Quixotic Mar 25 '11 at 10:52
The line segment from $(4,5)$ and $(1,2)$ does not cross the $y$-axis. –  Henry Mar 25 '11 at 11:07