Question

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?



(1 point)
Responses

All real numbers greater than or equal to 0 and less than or equal to 30
All real numbers greater than or equal to 0 and less than or equal to 30

All real numbers greater than or equal to 0 and less than or equal to 100
All real numbers greater than or equal to 0 and less than or equal to 100

{0,100}
{0,100}

{0,30}
{0,30}

Answer 1

All real numbers greater than than or equal to 0 and less than or equal to 30.

Reason: Time (in minutes) starts at 0 when the workout begins and ends at 30 when the student stops, so the domain is [0, 30].