Which scenario is best represented by the graph below

I will guest that it will be these answers:
The best represent the scenario shown in the graph of the quadratic functions, y = x2 and y = x2 + 3 are the following: -The quadratic function, y = x2, has an x-intercept at the origin   -From x = -2 to x = 0, the average rate of change for both functions is negative  
-For the quadratic function, y = x2 + 3, the coordinate (2, 7) is a solution to the equation of the function.  

Answers are below

Step-by-step explanation:

The rate of change represents the number of stamps added every month.

The rate of change is 3.

The initial value represents how stamps she had before adding more.

The initial value us 8.