Question

Sal and three friends plan to bowl one or two games each. Each game costs $2.50. Identify the independent and dependent quantities in the situation. Find reasonable domain and range values.

Possible choices


A. total cost; number of games; $10 to $20; 4 to 8 games


B. total cost; number of games; 4 to 8 games; $10 to $20


C. number of games; total cost; 4 to 8 games; $10 to $20


D. number of games; total cost; $10 to $20; 4 to 8 games

Answer 1

C is the correct answer.

Answer 2

C. Number of games; total cost; 4 to 8 games; $10 to $20.

Explanation:

Since the number of games played affects the total cost, # of games is the independent variable (domain) and total cost is the dependent variable (range). There are 4 people in total and they plan to bowl 1 to 2 each, resulting in a total of 4 to 8 games. 2.50 dollars times 4 is $10 and 2.50 dollars times 8 is $20.