What makes your arguments convincing? Check any of the boxes that apply. I have strong opinions about many things. I can easily convince people that I’m right. I think about why I believe in things and use my beliefs to support my point. I back up my opinions with facts. I’m good at sounding like I know what I’m talking about, no matter what.

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)