vi ule tangent line to the curve at P(0.2, 15). Answer. Problem 3. (1 point) If a ball is thrown straight up into the air with an initial velocity of 45 fu/s, it height in feet after t second is given by y = 45t - 1612. Find the average velocity for the time period begining when t = 1 and lasting (i) 0.1 seconds (ii) 0.01 seconds (iii) 0.001 seconds Finally based on the above results, guess what the instantaneous velocity of the ball is when t = 1. Problem 4. (1 point) given by the values of the table