Write an equation for the parabola in standard form. Use a graphing utility to graph the equation and verify your result 29. 27. 5 (-1,4) (0,3) (-3,0) (1, 0) -7 6 3 (-2,-1) -2 -1 2 Write the standard form of the quadratic function that has the indicated vertex and whose graph passes through the given point. Verify your result with a graphing utility. Vertex: 31. Vertex: (1, -2) Point: (-1, 14)33. (2.1) Point: (-2, -21) Find two quadratic functions, one that opens upward and one that opens downward, whose graphs have the given x-intercepts. (There are many correct answers.) 45. (-1, 0), (3, 0) (-3, 0), 47. (-1.0)