Name:    SOL A.7CD ZEROS AND INTERCEPTS OF A FN MINI QUIZ

Multiple Choice
Identify the choice that best completes the statement or answers the question.

1.

Kristi rides her bike to school and has an odometer that measures the distance traveled. She subtracts this distance from the distance to the school and records the distance that remains between her and the school. Find the intercepts. What do the intercepts represent?

 Time traveled (min) Distance remaining (ft) 0 5,000 2 3,750 4 2,500 6 1,250 8 0
 a. x-intercept = 8; y-intercept = 5000The x-intercept represents the time traveled when Kristi arrived at school. The y-intercept represents the distance remaining when Kristi began her bike ride. b. x-intercept = 5000; y-intercept = 8The x-intercept represents the time traveled when Kristi began her bike ride. The y-intercept represents the distance remaining when Kristi arrived at school. c. x-intercept = 5000; y-intercept = 8The x-intercept represents the distance remaining when Kristi began her bike ride. The y-intercept represents the time traveled when Kristi arrived at school. d. x-intercept = 8; y-intercept = 5000The x-intercept represents the time traveled when Kristi began her bike ride. The y-intercept represents the distance remaining when Kristi arrived at school.

1.

The graph shows membership costs at a gym. How much was the initial membership fee?

Essay

1.

The cost of a prepaid cell phone plan from 123-Phone includes an activation fee plus a cost per minute. The total costs are represented in the table below.

123-Phone
 Minutes Used (t) Total Cost (f(t)) 0 \$7.50 1 \$7.55 2 \$7.60 3 \$7.65 4 \$7.70

ABC-Phone also charges an activation fee plus a rate per minute. The total cost for ABC Phone’s plan when t minutes are used is given by .

Part A: Write a statement comparing the y-intercepts of these functions. Explain how you found your answer.
Part B: What is the meaning of each y-intercept in the context of the real-world situation? Compare the y-intercepts in this context.
Part C: Function f is represented by a table and g is represented by an equation. Show at least two different ways to represent f and g in the same way. Explain how to determine the y-intercepts from each representation.