ANSWER
[tex]-\frac{3}{2}[/tex]EXPLANATION
The slope of a line is given as:
[tex]m=\frac{y_2-y_1}{x_2-x_1}[/tex]where (x₁, y₁) and (x₂, y₂) are the two points on the line.
Therefore, we have that the slope of the line is:
[tex]\begin{gathered} m=\frac{-2-4}{1-(-3)}=\frac{-2-4}{1+3} \\ m=\frac{-6}{4} \\ m=-\frac{3}{2} \end{gathered}[/tex]