7.For the quadratic function given below answer the following questions: f(x)=-2 x^{2}-4 x+6 a. Does the quadratic open up or down? b. What is the vertex of the quadratic? c. What is the axis of symmetry for the quadratic? d. What are the x-intercept(s)? e. Rewrite the quadratic in Vertex Form. f. Give a rough sketch of the quadratic with the vertex, x andy-intercepts labeled. [2 points]