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Quiz #4 3)_(15 pts) The figure below shows the upward velocity of a rocket. Use the information in the graph to estimate the height of the rocket when t = 1, 2, 3, 4 and 5 seconds. Show all of your work. 400 velocity (m/sec) 200 100 S time (seconds) 4) (15 pts) Define A(x) to be the area bounded by the t axis, the line y = 2t and a vertical line at t = x as shown in the figure below. A (X ) = arca a) Find a formula for A(x). b) Find A'(x) from the formula you found in part a)