This question was on my last test and i got completely stumped. Can someone please show me how to do it?

Determine the Co-ordinates of the point on the graph of $\displaystyle y=x^2-8x+14$ where the slope of the tangent is -2. Find the equation of the tangent and show that this tangent touches the curve $\displaystyle y=-x^2-4x+4$. what are to co-ordinates of this point of contact?