The graph depicts the growth in costs using a line segment. Use the midpoint formula to approximate the cost during the year 1987. Average Annual Cost of Tuition and Fees At 4-Year Private Colleges During 1983 – 1991 The approximate cost during the year 1987 was $ Cost $10000 $9959 $8000 $6000 $5015 $4000 $2000 1983 Year 1991

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Sequence and Series

A sequence is defined as a collection of things. Series is defined to sum the things one by one in the sequence.  It was invented by German mathematician Carl Friedrich Gauss.