Which statement correctly explains whether lim n(x) exists?
X-9
O The limit does not exist because the values of h(x)
seem to oscillate between random values around x =
9.
O The limit does exist because h(x) is defined for all
given values around x = 9, even though h(x) isn't
defined at x = 9.
O The limit does not exist because h(x) is not defined at
x = 9, and for a limit to exist, the function must be
defined at x = 9.
O The limit does exist because the values of h(x) to the
right of x = 9 are all opposites of the values of h(x) to
the left of x = 9.

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)