please the two questions asap thanks

Write the quadratic function in standard form. n(x) = x2 - 1 h(x) = (0, -1) x Sketch its graph. 10 Graph Layers 9 After you add an object to the graph can use Graph Layers to view and ec properties. 6 4 FIN 2 -107 10 No So -6 0 Halo -10 WebAssign Graphing Tool Identify the vertex Find two quadratic functions whose graphs have the following x-intercepts. (There are many correct answers.) (-8, 0), (0,0) Find one function with the given x-intercepts whose graph opens upward. f(x) = Find one function with the given x-intercepts whose graph opens downward. g(x)