In 2007 there were 740 students enrolled in an online training program, and in 2010 there were 998 students enrolled in the program. Let y be enrollment in the year x, where x=0 represents the year 2007.
(a) Which of the following linear equations could be used to predict the enrollment y in a given year x, where x=0 represents the year 2007? Explain/show work.
A. y=258x + 224
B. y=258x + 740
C. y=86x + 740
D. y=86x + 998
(b) Use the equation from part (a) to predict the enrollment for the year 2014. Show work.
(c) Fill in the blanks to interpret the slope of the equation: The rate of change of enrollment with respect to time is _________________ per ___________________. (include units of measurement).
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