Just select the right one

which  best  describes the transformation from the graph of  f(x) =  x2  to the graph of  f(x) = (x  – 3)2  – 1?   left 3 units, down 1 unitleft 3 units, up 1 unitright 3 units, down 1 unit  right 3 units, up 1 unit

What are the solutions of the following system? y=-2x^2 y=x-2

For the right triangle shown, the lengths of two sides are given. find the third side. leave your answer in simplified, radical form.