Answer :

naǫ
The line passes through the points [tex]A(-3,4)[/tex] and [tex]B(1,2)[/tex].

[tex]\hbox{the slope: } m=\frac{y_2-y_1}{x_2-x_1}=\frac{2-4}{1-(-3)}=\frac{-2}{1+3}=\frac{-2}{4}=-\frac{1}{2} \Leftarrow \hbox{answer B}[/tex]