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Suppose that the points (h,k), (1,2) and...

Suppose that the points `(h,k)`, `(1,2)` and `(-3,4)` lie on the line `L_(1)`. If a line `L_(2)` passing through the points `(h,k)` and `(4,3)` is perpendicular to `L_(1)`, then `k//h` equals

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`L _1 : ( y - 2) = - (1 ) /(2) ( x - 1 ) = x + 2y - 5 = 0`
` L _ 2 : ( y - 3 ) = 2 ( x - 4 ) = 2x - y- 5 = 0 `
Put `h, k` in both lines
` (h, k) = (3, 1) rArr (k)/(h) = (1)/(3) `
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