MHA SHIPS ON MY LIST: Deku x Uraraka (A lot of you gonna hate me for this but can't you see-)

Momo x Todoroki (My friend told me to put this)

Bakugo x Kirishima (YES YES YES YES)

Denki and Jirou ( This was told to me but I still ship!!)

TELL ME UR OPINIONS!!!

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)