For this case we have a function of the form:

We will evaluate the function for different values of x:
For x = 1:
For x = 2:
For x = 3:

We note that for each value of x, the function is 5 times greater than the previous value.
Answer:
The multiplicative rate of change of the function is:
5
The function is 5 times greater for each value of x.
F(1) = -5(1)^2+2(1)+9 = 6
f(2) = -5(2)^2+2(2)+9 = -9
So, because f(1) = 6 is positive and f(2) = -9 is negative, f(1) > f(2).
f(1) is greater than f(2)!
460 and 375 are the answer.
When you add 2pi to the angle, the amount is still the same. Therefore, you can make -17pi/4 positive by adding 6pi to it.
6pi + (-17pi/4)
= 24pi/4 - 17pi/4
= 7pi/4
X 0 y was 30
at x 12 y is about 55
12-0 = 12
55-30 = 25
25/12 = 2.08 inches per year average
so answer should be D