1.
Describe how the graph of y= x2 can be transformed to the graph of the given equation. (2 points)
y = x2 + 13

Shift the graph of y = x2 right 13 units.
Shift the graph of y = x2 left 13 units.
Shift the graph of y = x2 down 13 units.
Shift the graph of y = x2 up 13 units.

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)