Which of these functions best describes this graph?

The correct option is A.

Step-by-step explanation:

The vertex from of a parabola is

Where, (h,k) is vertex of the parabola and a is a Constant.

From the given graph it is clear that the vertex of the parabola is (1,0) and the y-intercept is (0,1).

The vertex of the parabola is (1,0). Put h=1 and k=0 in the above equation.

          ... (1)

The graph passing through (0,1).

Put a=1 in equation (1) to find the equation of parabola is

Therefore option A is correct.

a thesis statement is not a fact or a question

step-by-step explanation:

a thesis statement is a topic it is not a fact or a question