Question One [3 marks] You are walking away from a 4.5m tall lamp post at a rate of 5km/hr. If you are 1.5m tall, how fast is the length of your shadow increasing? Fully explain your answer.Question Two [3 marks] Let f(x) = (x3 + r)3. Find the absolute maximum and minimum points of f(x) on the interval [-3, 3]. Show all steps.Question Three [2 marks] Let f(x) be a continuous function. If f(1) = 3 and f'(x)