The Cartesian equation of a line is $3x + 1 = 6y - 2 = -z + 1$. Find its vector equation.

  • A
    $\overline{r} = (-\frac{1}{3} \hat{i} + \frac{1}{3} \hat{j} + \hat{k}) + \lambda(2 \hat{i} - \hat{j} - 6 \hat{k})$
  • B
    $\overline{r} = (-\hat{i} + 2 \hat{j} - \hat{k}) + \lambda(3 \hat{i} + 6 \hat{j} - \hat{k})$
  • C
    $\overline{r} = (-\frac{1}{3} \hat{i} + \frac{1}{3} \hat{j} + \hat{k}) + \lambda(2 \hat{i} - \hat{j} + 6 \hat{k})$
  • D
    $\overline{r} = (-\frac{1}{3} \hat{i} + \frac{1}{3} \hat{j} + \hat{k}) + \lambda(2 \hat{i} + \hat{j} - 6 \hat{k})$

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