Alg+I+secondary+credit+asmt

Sample Algebra I secondary credit assessment item for Power Standard 2: Choose the appropriate family of functions to model a real-world situation, write the symbolic form of the function, and use the specific function to draw conclusions about the situation. (A2.4.1-3) You can obtain a copy of the entire assessment by contacting Theron Blakeslee, Ingham ISD.

15. Figure out the cost of talking for 100 minutes in one month, using this plan. Show all your work: 16. Which type of function best models this situation? Let y stand for the total cost for a month of calls. Let x stand for the number of minutes used. If you need help with this, look back at how you figured out the total cost and think about how that would be represented with an equation. (Let a stand for the cost per minute. Let b stand for the monthly charge. You can put in the actual values for a and b if that will help you figure this out.) A. A linear function, where y = ax + b B. A quadratic function, where y = ax2 + b  C. An exponential function, where y = abx
 * Use this scenario for questions 15-16: **
 * A cell phone company has a plan that charges $20 per month plus $0.05 per minute. Think about a situation where a person makes 100 minutes of calls in one month using this plan. **