If the parabola y=(a-b)x^2+(b-c)x+(c-a)...

If the parabola `y=(a-b)x^2+(b-c)x+(c-a)` touches x- axis then the line `ax+by+c=0` (a) always passes through a fixed point (b) represents the family of parallel lines (c) is always perpendicular to x-axis (d) always has negative slope

A

always passes through a fixed point

B

represents the family of parallel lines

C

data insufficient

D

none of these

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The correct Answer is:

A

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