First, we need to calculate the slope for AB and CD
[tex]AB=\frac{y2-y1}{x2-x1}=\frac{6-3}{2-(-2)}\rightarrow AB=\frac{3}{4}[/tex][tex]CD=\frac{y2-y1}{x2-x1}=\frac{3-0}{3-(-1)}\rightarrow CD=\frac{3}{4}[/tex]CD and AB slopes are equal, hence AB and CD are parallel
