SOLUTION: In the early years of microcomputers, school districts could not afford to buy a computer for every student. As the price of computers decreased, more and more school districts hav

Question 455563: In the early years of microcomputers, school districts could not afford to buy a computer for every student. As the price of computers decreased, more and more school districts have been able to attain this goal.
The following table lists numbers of students per computer during these early years.
Year 1983 1985 1987 1989
Students/computer 125 50 32 22

Year 1991 1993 1995 1997
Students/computer 18 14 10 6
a)make a scatterplot of the data. Would a straight line model the data accurately? Please explain.
b)Explain how well the formula models these data, where S represents the students per computer and y represents the year.
S =_____________125__________ y > 1983
1 + 0.7 (y � 1983) �
c)In what year does the formula reveal that there were about 17 students per computer?

Answer by shauney(1) (Show Source): You can put this solution on YOUR website!
In the early years of microcomputers, school districts could not afford to buy a computer for every student. As the price of computers decreased, more and more school districts have been able to attain this goal.
The following table lists numbers of students per computer during these early years.
Year 1983 1985 1987 1989
Students/computer 125 50 32 22
Year 1991 1993 1995 1997
Students/computer 18 14 10 6
a)make a scatterplot of the data. Would a straight line model the data accurately? Please explain.
b)Explain how well the formula models these data, where S represents the students per computer and y represents the year.
S =_____________125__________ y > 1983
1 + 0.7 (y � 1983) �
c)In what year does the formula reveal that there were about 17 students per computer?

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