Determine which description of description.
trendlines would be a better fit for the data. Choose yes or no for each

❏ Yes ❏ No A line that passes through the points (10, 20) and (45, 40)

❏ Yes ❏ No A line that passes through the points (10, 15) and (45, 35)

❏ Yes ❏ No A line that passes through the points (10, 15) and (50, 15)

❏ Yes ❏ No A line that passes through the points (20, 25) and (35, 35)

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)