A line contains the points (0, -1) and (-1, 2). Another line graphed in the same coordinate plane contains the points (2,0) and (-2,3). Based on the slope of these lines, are they parallel, perpendicular or neither?

Question

A line contains the points (0, -1) and (-1, 2). Another line graphed in the same coordinate plane contains the points (2,0) and (-2,3).  Based on the slope of these lines, are they parallel, perpendicular or neither?

anonymous · Answer

not sure but the slope is found by  $$y _{2}-y _{1}$$ over $$x _{2}-x _{1}$$ If that's it then these lines are neither parallel nor perpendicular.