Function Concepts:WS Domains and Ranges Wd Problems
Klobedans/Algebra 2/Fall 2008
Name: ____________________________________ Period: _____ Date: _______________________
WORKSHEET – DOMAINS AND RANGES FROM
WORD PROBLEMS
Read each word problem below and answer the questions that follow. Remember to
answer all questions in context using proper notation and symbols. When asked to
describe the domain or range, be sure to think about appropriate limitations on the
domain and range in context of the problem.
Use the following information to answer questions 1 – 3.
Joe had a summer job that pays $7.00 an hour and he worked between 15 and 35 hours every week. His
weekly salary can be modeled by the equation: S = 7h, where S is his weekly salary and h is the number
of hours he worked in a week.
1. Describe the independent variable for this problem.
2. Describe the domain and range for this problem using appropriate notation.
Domain:
Range:
3. What does each value in the ordered pair (20, 140) mean in context of this problem?
Use the following information to answer questions 4 and 5.
Hector’s service club is raising money by wrapping presents in the mall. The function f(x) = 3x
describes the amount of money, in dollars, the club will earn for wrapping x presents. They only have
enough wrapping paper to wrap 1000 presents.
4. Describe the dependent variable for this problem.
5. Describe the domain and range for this problem using appropriate notation.
Domain:
Range: