Omar launches a rocket straight up into the air. The table below gives the height , () of the rocket (in meters) at a few times / (in seconds) during its flight. Time t Height H (1) (seconds) (meters) 0 0 2.3 92 4.6 138 9.2 23 11.5 0 (a) Find the average rate of change for the height from 0 seconds to 2.3 seconds. [ meters per second (b) Find the average rate of change for the height from 4.6 seconds to 11.5 seconds. [meters per second X