May I get help for number 7. as I do not understand how to do it.

each time interval, t, after liftoff. a. 30 seconds b. 1 minute C. 2 minutes d. If the time the space shuttle is in flight doubles, does the distance double? Explain. 6. Baseball When an object.is projected upward its height in feet above the ground, d(1), is given as a function of time, t in seconds, by the formula d (t) = Vot - _ gt2 . The acceleration due to gravity, g, is 32ft/s2 . If a player hits a ball straight upward with an initial velocity, Vo, of 80 ft/s, determine the time that the ball is in the air. 7. Relative Extrema Suppose the graph of g(x) has two relative(local) maxima and one relative (local) minimum. a. What is the minimum degree of g(x)? b. Sketch a graph to support your answer. 8. Impossible Situation? Is it possible for a polynomial to have two local maxima and no local minimum? Explain