1.

.If the equations x -2y 3 and 2x + by 6represent the same line, then the value ofb is

Answer»

Equation in standard form :

x - 2y - 3 = 0 ......(1)

2x + by - 6 = 0 .......(2)

That will be case of coincident. 1/2 = -2/b so it gives b = -4

So, putting b = -4 (2) gives 2x - 4y -6 = 0divide by 2 gives x - 2y - 3 = 0


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