The graph below shows the value of edna's profits f(t), in dollars, after t months:

graph of quadratic function f of t having x intercepts at 6, 0 and 18, 0 and vertex at 12, negative 36 and passes through 3, 49

what is the closest approximate average rate of change for edna's profits from the 3rd month to the 9th month? (1 point)

question 6 options:

1)

−69.75 dollars per month

2)

−11.63 dollars per month

3)

six dollars per month

4)

nine dollars per month