Sample Test Item Preview

General Information
Related Benchmark: MAFS.912.F-LE.1.2
Reporting Category: Functions: Linear, Quadratic, & Exponential Models
Type: EE: Equation Editor
Difficulty: N/A
Question:

A study estimates that the cost of tuition at a university will increase by 2.8% each year. The cost of tuition at the university in 2015 was $33,741.

The function, B(x), models the estimated tuition cost, where x is the number of years since 2015.

Click on the blank to enter an expression that completes the function B(x).

Possible Answer:

B(x)=begin mathsize 12px style 33741 left parenthesis 1.028 right parenthesis to the power of x end style

Other correct responses:

B(x)=begin mathsize 12px style 33741 left parenthesis 1 plus 0.028 right parenthesis to the power of x end style

B(x)=begin mathsize 12px style 33741 left parenthesis 1 plus.028 right parenthesis to the power of x end style