1. The height, y, in centimetres. of a point on a computer fan relative to time is modelled by v = 4sinx + 1, where x is the time, in milliseconds. a) Sketch a graph of the function for ONE ROTATION of the fan. Be sure to label vour axes. AMLIJLU" _ _ ED 131] 2?]: same:- b) State the domain and the range of the function for one rotation of the fan. c} Determine the maximum height of the given point on the fan. d} Determine the height of the given point on the fan after it rotates through an angle of 15D\". _ 3612i 3. Four years from now, Chris wants to buy a new car. He deposits $400 at the end of each month into an account that earns 4.25% annual interest, compounded monthly. a) Find the amount in his account at the end of 4 years. b) If the car he wants costs $20 000, will he have enough money saved to pay for the car in 4 years