Use the four-step process to find the slope of the tangent line to the graph of the given function at any point. (Simplify your answers completely.) f( x) = - - 4 Step 1: f( x + h) = Step 2: f( x + h) - f(x) = f(x + h) - f(x) Step 3: h Step 4: f'(x) = lim f (x + h) - f(x) h-0 h