Question 111294

*[invoke solve_by_graphing 1, -6, 12, 6, 1, 6]


Since you have  {{{m1 = 1/6}}}  and    {{{m2 = -6}}}, and perpendicular lines have slope that are negative reciprocals  {{{m1 = -1/m2}}}, then:

{{{m1 = -1/m2}}}

{{{1/6 = -1/-6}}}
{{{1/6 = 1/6}}}…so, your lines are perpendicular