Can you explain how to do b? I am unable to open a file so please don't make the explanation a file.

3) The graph of the equation xy + 2x - y = 0 is graphed at the right. A) Find the derivative with respect to x. d ( x4) + , d (x) _ d(y) _ d(o) dx dx dy - y - 2 dx dx dx = X - 1 1.4 + x dy + 2 - dy = 0 dy dy dx = _4+2 [x - 1 ] =-y-2 dx dx X- 1 B) Find the equation/s of the normal line/s that is/are parallel to the line 2x + y = 0. (los Los (1-10)