Slopes of the lines of a given pair are in a given ratio: find the unknown coefficient

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

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1. A.
   $\frac{9}{4}$
2. B.
   $\frac{4}{9}$
3. C.
   $\frac{27}{4}$
4. D.
   $\frac{4}{27}$

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1. A.
   4
2. B.
   2.5
3. C.
   5
4. D.
   1

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

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