A student worked out at a gym continuously for 30 minutes. The graph shows the remaining percentage of the workout as a function of time in minutes . Which answer choice describes the domain of this situation ? All real numbers greater than or equal to and less than or equal to 30 All real numbers greater than or equal to and less than or equal to 100 0,100 \{0, 30\}
The student worked out continuously for 30 minutes, so the time can be any real number greater than or equal to 0 and less than or equal to 30. Therefore, the correct answer choice is "All real numbers greater than or equal to 0 and less than or equal to 30."
