Question 980056
{{{(y-(-4))/(10-(-9))=(y+4)/19=m}}}  for the "line passing through" the two points.


Line perpendicular to that of slope -19/12 will have slope  {{{12/19}}}.


{{{(y+4)/19=12/19}}}
{{{y+4=12}}}
{{{highlight(y=8)}}}