(2 pts) Below is an "oracle" function. An oracle function is a function presented interactively. When you type in a t value, and press the ---> button the value f (t) appears in the right hand window. There are three lines, so you can calculate three different values of the function at one time The function fcl) represents the height in feet of a ball thrown into the air, t seconds after it has been thrown. Calculate the average velocity 2 21 seconds after the ball has been thrown. Average velocity at 2.21 = 4.88 You can use a calculator f(t) 2.21 2.21 221 Remember this technique for finding velocities. Later we will use the same method to find the derivative of functions such as f(t)