a) Find the average rate of change of the water level between 0 and 16 hours. Show proper units and notation. /2 b) Estimate the instantaneous rate of change of the water level at 6 hours. Use 2 methods. /7 (SUBMIT FINAL ANSWER ON DELTA MATH-UPLOAD ROUGH WORK AT THE END ON A SEPARATE PAPER) Answer Time (hours) 0 2 4 9 8 10 12 12 14 16 Water Level (meters) 10 15 18 20 23 22 21 20 18 a) Average rate of change of the water level between 0 and 16 hours b) Estimated instantaneous rate of change for method 1: Estimated instantaneous rate of change for method 2: