Functions, Domain, and Range from Situations and Graphs

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. What is the independent variable for this problem?

• S, the weekly salary

• h, the number of hours worked

• 7, the hourly pay rate

• The number of weeks worked

Joe had a summer job that pays $7.00 an hour and he worked at least 15 and no more than 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. Describe the domain for this problem using appropriate notation.

Joe had a summer job that pays $7.00 an hour and he worked at least 15 and no more than 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. Describe the range for this problem using appropriate notation.

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. What does each value in the ordered pair (20, 140) mean in context of this problem?

• Joe worked 20 hours and earned $140 that week.

• Joe worked 140 hours and earned $20 that week.

• Joe worked 20 hours and earned $7 that week.

• Joe worked 7 hours and earned $140 that week.

• The number of presents wrapped

• The amount of money earned

• The cost of wrapping paper

• The number of club members

• Domain: 0 ≤ x ≤ 1000, Range: 15 ≤ f(x) ≤ 3015

• Domain: {0,1,2,...,1000} , Range: {15,18,21,...,3015}

• Domain: 1 ≤ x ≤ 1000, Range: 15 ≤ f(x) ≤ 3015

• Domain: {1,2,3,...,1000}, Range: {0,3,6,...,3015}

What are the domain and range for this relationship?

What are the domain and range for this relationship?

Which of the following are true?

• This is a function

• This is not a function

• The range is all real numbers

• The domain is all positive numbers

• Domain: All real numbers