Question 1050228
{{{y=a(x-r)(x-s)}}}


The given roots make for 
{{{y=a(x+6)(x-4)}}}



The given point included lets you find value for 'a'.
{{{a=y/((x+6)(x-4))}}}
{{{a=-3/((2+6)(2-4))}}}
{{{a=-3/(8*(-2))}}}
{{{a=3/16}}}



{{{highlight(y=f(x)=(3/16)(x+6)(x-4))}}}