This table represents a quadratic function with a vertex at (1,1). what is the average rate of change for the interval from x=5 to x=6 ?

C. 9

Step-by-step explanation:

The vertex form of the function is given by;

where is the vertex of the parabola.

We substitute a third point say, (3,5) to find the value of a;

The function is

The average rate of change for the interval x=5 to x=6 is

where's the diagrams?

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