Identify the vertex, the equation of the axis of symmetry, and the x- and y-intercepts of the graph. Then graph.f(x) = -x2 + 2x + 3

A. Vertex: (1, - 4);
axis of symmetry: x = 1;
x-intercepts: (-1, 0), (3, 0);
y-intercept: (0, 3)

B. Vertex: (- 1, 4);
axis of symmetry: x = - 1;
x-intercepts: (-3, 0), (1, 0);
y-intercept: (0, 3)

C. Vertex: (1, 4);
axis of symmetry: x = 1;
x-intercepts: (-3, 0), (1, 0);
y-intercept: (0, 3)

D. Vertex: (1, 4);
axis of symmetry: x = 1;
x-intercepts: (-1, 0), (3, 0);
y-intercept: (0, 3)