Which statement about the graph of the function f(x)=2x^2-x-6 are true? A. The domain of the function is {x|x > (1/4)}B. The range of the function is all real number C. The vertex of the function is [(1/4)-6(1/8)]D. The function has two x-intercepts E. The function is increasing over the interval (-6(1/8), infinity )