A population of bacteria doubles once every 3 days. The equation representing the population (P) after d days is P(d) = – 500(2)1 What does the value (2) i represent in the equation?
O the population on day d
O the population on day 3
O the factor of growth in population each day
O the factor of growth in population over three day

Can someone me do math because i am having a breakdown rn because i don’t get it

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)

Plot the intercepts to graph the equation