19 For the quadratic function f x 2x 2x 5 a Find the vertex and axis of symmetry of the quadratic function and determine whether the graph is concave up or concave down b Find the y intercept and x intercept if any c Find the domain and range of the quadratic function d Determine where the quadratic function is increasing and where it is decreasing e Determine where f x 0 and where f x 0 f Graph the function