Morty, a land surveyor, was called out to survey a property. After doing some research, he located the legal description for the property in question. Now, if he could just find the point of beginning located at the iron pin on the southerly line of state route 117, 30 feet east of the oak tree next to Bear Creek. What type of legal description is Morty working with

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)