Describe the key features of the graph of the quadratic function f(x) = x2 + 2x - 1 A. Does the parabola open up or down? B. Is the vertex a minimum or a maximum? C. Identify the axis of symmetry, vertex and the y-intercept of the parabola.
Accepted Solution
A:
A.) it opens up because it is positive. B. The vertex is a minimum, because it opens up C/ The axis of symmetry is X=-1, the Vertex is (-1,-2). The Y interecept is y= -1