Shown below is the graph and equation of a function describing data rate of an internet service provider's data line. D is the data transfer rate, measured in Kilobytes per second, and is time in seconds. Produce an estimation for the total amount of data transmitted (in Kilobytes) during the first 4 seconds. D = 10e1.15t +t3 + 500 sin(1.2t) + 500 2000 Data Rate (KB/s) 1000 0.5 1 1.5 2.5 3 3.5 Time (seconds) %3B