Question

The table below shows the costs of a small store from 2000 to 2005. Assume that t is the number of years since 2000 and C is the cost in thousands of dollars. Find the best-fitting quadratic model for the data. Round to two decimal places.


Year, t
0
1
3
5
Operating costs, C
14.8
9.1
3.3
5.1

Answer 1

C(t) = 0.95t^2 − 6.67t + 14.82 (C in thousands of dollars, coefficients rounded to two decimal places)