Question 1022290
OK, let the point be (x,y).
{{{m[1]=(y-5)/(x-(-1))=(y-5)/(x+1)}}}
{{{m[2]=(y-0)/(x-0)=y/x}}}
So then,
{{{m[1]=2*m[2]}}}
{{{(y-5)/(x+1)=(2y)/x}}}
{{{x(y-5)=2y(x+1)}}}
{{{xy-5x=2y(x+1)}}}
{{{2y(x+1)-xy=-5x}}}
{{{y(2(x+1)-x)=-5x}}}
{{{y(2x+2-x)=-5x}}}
{{{y(x+2)=-5x}}}
{{{highlight(y=(-5x)/(x+2))}}}