Pedro has created the function f(x) =  to represent the number of assignments he has completed, where x represents the number of weeks in the course. pedro discovers that, using the inverse function to solve for x = 30, he can predict when he will have 30 assignments completed. explain to pedro how to accomplish this, using complete sentences.

The position of a moving particle is given by the position function: f(t)=-9t-t^2-0.2t^3+0.1t^4 0 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)