Equation of a line from the perpendicular distance from the origin and its direction (normal form)

1. A.
   $x + y = 4$
2. B.
   $x - y + 4 = 0$
3. C.
   $x - y = 4$
4. D.
   $x + y + 4 = 0$

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1. A.
   $x + \sqrt{3}y - 14 = 0$
2. B.
   $x + \sqrt{3}y + 14 = 0$
3. C.
   $x - \sqrt{3}y + 14 = 0$
4. D.
   $x - \sqrt{3}y - 14 = 0$

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1. A.
   $x + y = 7$
2. B.
   $x + y = 7\sqrt{2}$
3. C.
   $x + y = \sqrt{2}$
4. D.
   $x + y = 2$

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1. A.
   $x + y + 4 = 0$
2. B.
   $x + y + 4\sqrt{2} = 0$
3. C.
   $x - y + 4 = 0$
4. D.
   $x - y + 4\sqrt{2} = 0$

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