that makes the equation of the line perpendicular to it to be -1 / (1/6) = -6
the general equation in point slope form is
y-y1 = m(x-x1) where m=slope and (x1,y1) = point on the line
so here we have:-
y - 23 = 6(x -(-3)
y - 23 = 6x + 18
y = 6x + 41
thats the answer