30 POINTS. HELP When a tow truck is called, the cost of the service is
given by the linear function y=3x+40 , where y is in
dollars and x is the number of miles the car is towed.
Find and interpret the slope and y-intercept of the linear
equation.

Which expression gives you the distance between the points (5,1)and(9,-6)

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)

Tom drove 206 miles in 3.9 hours. estimate his average speed.