advertisement

Regents Exam Questions CC.F.IF.8: Modeling Exponential Functions Page 1 www.jmap.org Name: __________________________________ CC.F.IF.8 Modeling Exponential Functions: Write a function defined by an expression in different but equivalent forms to reveal and explain different properties of the function. a. Use the process of factoring and completing the square in a quadratic function to show zeros, extreme values, and symmetry of the graph, and interpret these in terms of a context. 1 Some banks charge a fee on savings accounts that are left inactive for an extended period of time. The equation represents the value, y, of one account that was left inactive for a period of x years. What is the y-intercept of this equation and what does it represent? 1) 0.98, the percent of money in the 3) 5000, the amount of money in the account initially account initially 2) 0.98, the percent of money in the 4) 5000, the amount of money in the account after x years account after x years Regents Exam Questions CC.F.IF.8: Modeling Exponential Functions www.jmap.org 1 ANS: 3 REF: 011515ai