Teaneck High had an enrollment of 11040 in 1985 and an enrollment of 12100 in year 1998. What is the predicted enrollment of Teaneck High in 2014 if we assume a linear model?

Answer 1

Assuming linear variation, rate of increase,
r = (12100-11040)/(1998-1985)

Predicted enrollment in 2014,
E(2014) = E(1998)+(2014-1998)r
= 12100 - (2014-1998)r

Calculate for E(2014).