Distance between the parallel lines given by one second-degree equation

1. A.
   $5$
2. B.
   $\sqrt{5}$
3. C.
   $25$
4. D.
   $\frac{9}{5}$

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1. A.
   $\frac{1}{\sqrt{5}}$ units
2. B.
   $\frac{1}{5}$ units
3. C.
   $\sqrt{5}$ units
4. D.
   5 units

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1. A.
   $\frac{2}{5}$
2. B.
   $\frac{35}{2}$
3. C.
   $\frac{5}{2}$
4. D.
   $\frac{7}{5}$

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