8. [-/2 Points] DETAILS MY NOTES AUFCAT7 2.4.010. Use the method of completing the square to find the standard form of the quadratic function. f(x) = x2+ 6x - 1 State the vertex and axis of symmetry of the graph of the function. axis of symmetry X = vertex ( x, y ) = Sketch the graph. Graph Layers After you add an ob can use Graph Lay properties. Fill -10 -9 -8 -7 -6 -5 -4 -3 -2 -1 12 3 4 5 6 7 8 9 10 No Solution Help WebAssign. Graphing Tool