Answer:
[tex]k=-\frac{4}{3}[/tex]
Step-by-step explanation:
[tex]-\frac{1}{2} -\frac{3}{2} = \frac{3}{2} k[/tex]
[tex]-2= \frac{3}{2} k[/tex]
[tex]-\frac{4}{3}[/tex][tex]=k[/tex]