The definition of the slope is described by the formula
[tex]m=\frac{y_2-y_1}{x_2-x_1}[/tex]use point 1 as (-2,-3)
and point 2 as (2,3)
[tex]\begin{gathered} m=\frac{(3)-(-3)}{2-(-2)} \\ m=\frac{3+3}{2+2} \\ m=\frac{6}{4} \\ m=\frac{3}{2} \end{gathered}[/tex]the slope is 3/2