@clock: that you equate two y-s by knowing your y's signs shouldn't allow for canceling your x-s too?
I also feel this DS somehow got lucky to have both x and y of the same sign and making direct proportional change in the linear function between two slopes and y-intercepts. I am wondering about other possible scenarios, what would happen with Anurag's solution then and I guess the solution proposed by madhan, when we have selected common x and y coordinates (crossing point) and applied the other two possible coordinates for two lines r and s with different signs in order to obtain various slopes with various equation lines - this would be sensible solution? what do yo think?
I also feel this DS somehow got lucky to have both x and y of the same sign and making direct proportional change in the linear function between two slopes and y-intercepts. I am wondering about other possible scenarios, what would happen with Anurag's solution then and I guess the solution proposed by madhan, when we have selected common x and y coordinates (crossing point) and applied the other two possible coordinates for two lines r and s with different signs in order to obtain various slopes with various equation lines - this would be sensible solution? what do yo think?
clock60 wrote:hi all
r=y=k1*x+b1
s=y=k2*x+b2, we need to estimate whether b2>b1.
...
i did not cancel x as i don`t know the sign
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