Which graph has a slope of 1? its the second graph the one that has the 2 then the one
did it on imagine math

Can somebody me out with this question

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)

Mis the midpoint of rq if rm equals 2x + 5 and mq equals 4x - 9 what is the length of rq