MN is translated up 2 units to form M'N' Which statement is true?

a. M’N’ crosses the x-axis at the same location that MN crosses the x-axis

b. the angle that M’N’ makes with the x-axis is less than the angle MN makes with the x-axis

c. the length of M’N’ is greater than the length of MN

d. the slope of M’N’ is the same as the slope of MN

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