The x and y coordinates of point p on the directed line segment from k to j such that the xny coordinates of. p on the directed line segment from k to jay said that p is 3/5

Don't know how to find x given these segment lengths

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)

What is the inverse of the function f(x) = 2x + 1?