QUESTION 1 . 1 POINT A car travels along a horizontal line according to the function s(t) = -6t - 4t + t where t is measured in hours and s is measured in kilometers. What is the velocity function v(t)? Provide your answer below: v(t) = FEEDBACKQUESTION 2 . 1 POINT The position of a car traveling along a highway is given by the function s(t) = 2t4 - 2t3 - 3t2 + 6 where t is measured in seconds and s is measured in kilometers. Find the acceleration function a(t). Provide your answer below: a(t =QUESTION 3 . POINT A train travels along a set of tracks according to the function s(t) = 14 - 3t - 712 + 5 where t 2 0 is measured in seconds and s is measured in meters. Is the train speeding up or slowing down at t = 2 seconds? Select the correct answer below: O Speeding up O Slowing down FEEDBACKQUESTION4 ' 1 POINT Consider a population of bacteria that grows according to the function f\") = 57880062 where t is measured in minutes. After how many minutes will the population reach 168,178 bacteria? Round your answer to the nearest whole number. Provide your answer below: I:] minute s n FEEDBACK