Question

The tuition at a public university was $21,000 in 2008. Between 2008 and 2010, the tuition had increased by 15%. Since then, it has continued to grow exponentially. Select all statements that describe the growth in tuition cost. 21,000 (1.15)2 A. The tuition cost can be defined by a function f, defined by f(o) where y represents years since 2008. B.The tuition cost increased 7.5% each year. C. The tuition cost increased about 7.2% each year. D) The tuition cost roughly doubles in 10 years. E/The tuition cost can be approximated byf(d) 21,000 2d, where d represents 3 decades since 2008.

Answer 1

A,C,D,E    graphed as 21000(1+0.15)^(x/2)