8. For the graph of the function, identify the axis of symmetry, vertex and the formula for the function.

A. Axis of symmetry: x = –1; Vertex: (–1, 0); f(x) = –x2 – 2x – 1

B. Axis of symmetry: x = –1; Vertex: (–1, 0); f(x) = –2x2 – 2x – 1

C. Axis of symmetry: x = –1; Vertex: (–1, –1); f(x) = –x2 – 2x – 1

D. Axis of symmetry: x = –1; Vertex: (–1, 0); f(x) = –x2 – x + 2

Axis of symmetry: x = –1; Vertex: (–1, 0); f(x) = –2x2 – 2x – 1

Step-by-step explanation:

What are the vertex and axis of symmetry of the equation?

The axis of symmetry always passes through the vertex of the parabola . The x -coordinate of the vertex is the equation of the axis of symmetry of the parabola. For a quadratic function in standard form, y=ax2+bx+c , the axis of symmetry is a vertical line x=−b2a .

4.5%

step-by-step explanation:

the answer is 40.

proof: