Points on one line at a distance of 1 unit from another line

1. A.
   $\left(\frac{30}{11},-\frac{5}{11}\right)$ and $\left(\frac{20}{11},\frac{15}{11}\right)$
2. B.
   $\left(-\frac{30}{11},\frac{5}{11}\right)$ and $\left(-\frac{20}{11},\frac{15}{11}\right)$
3. C.
   $\left(\frac{30}{11},\frac{5}{11}\right)$ and $\left(\frac{20}{11},-\frac{15}{11}\right)$
4. D.
   $\left(-\frac{30}{11},\frac{5}{11}\right)$ and $\left(-\frac{20}{11},-\frac{15}{11}\right)$

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1. A.
   $(5, -1)$ and $(-2, 6)$
2. B.
   $(3, 1)$ and $(-7, 11)$
3. C.
   $(9, -5)$ and $(-11, 15)$
4. D.
   $(-4, 8)$ and $(2, 2)$

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