Write a proportion for the following word problem. 1. You are currently working and getting paid $12 per hour but your boss is very satisfied with your work. Your boss is willing to give you a 75% raise. Write the proportion that gives your new hourly rate.

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)