Which statements represents the relationship between y=4^x and y=log4x? 1. the graphs of functions are symmetric to each other over the line y=x 2. the equation y=log4x is the logarithmic form of y=4^x 3. the functions are inverses of each other 4. the graphs of functions are symmetric about the line y=0

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)