Post Test: Comparing and Building Functions
12
The table represents the function fx).
9
16
1
3
4
-2
RX
-4
0
If g(x) = 4,0
– 8, which statement is true?
A
The y-intercept of gx) is less than the y-intercept of fx).
B.
The y-intercept of g x) is equal to the y-intercept of fx).
C.
The x-intercept of g(x) is equal to the x-intercept of AX).
D.
The x-intercept of g(x) is greater than the x-intercept of fx).

The position of a moving particle is given by the position function: f(t)=-9t-t^2-0.2t^3+0.1t^4 a. at what time does the particle reverse direction? b. when is the displacement positive? (round one decimal place and answer in interval notation) c. when is the displacement negative? (round one decimal place and answer in interval notation) d. when is the particle’s acceleration positive? (round one decimal place and answer in interval notation) e. when is the particle’s acceleration negative? (round one decimal place and answer in interval notation)