Answer
$y=-(x+2)(x-3)$
Work Step by Step
We already know $y$, $x$, $p$ and $q$ from the given x-intercepts and the point, so in order to get the quadratic function we need to find $a$...
$y=a(x-p)(x-q)$
$6=a(2)a(-3)$
$6=-6a$
$a=-\frac{6}{6}$
$a=-1$
Therefore the function is...
$y=-(x+2)(x-3)$