For this piecewise function (rollercoaster)... Part A. Select a height that two different parts of this piecewise function passes through- not one of the junction points. Algebraically determine the time when the height of the function is at that height to the nearest tenth of a second. Show all your work. (6 marks). Part B. Determine all intervals where the piecewise function's height is more than 50 metres. (5 marks).
