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Let a x+b y+c=0 be a variable straight l...

Let `a x+b y+c=0` be a variable straight line, whre `a , ba n dc` are the 1st, 3rd, and 7th terms of an increasing AP, respectively. Then prove that the variable straight line always passes through a fixed point. Find that point.

A

`x^2+y^2=13`

B

`x^2+y^2=5`

C

`y^2=9x`

D

`3x + 4y = 9`

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The correct Answer is:
A
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FIITJEE-STRAIGHT LINE -ASSIGNMENT PROBLEMS (OBJECTIVE) Level - I
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