The vertices of a triangle are $A(10,4),B(-4,9)$ and $C(-2,-1)$.Find the equation of the altitude through A?

Question

$\begin{array}{1 1}(a)\;x-5y+12=0\\(b)\;x-5y+10=0\\(c)\;x+5y+12=0\\(d)\;5x-5y+12=0\end{array}$