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 0 and less than or equal to 30
All real numbers greater than or equal
to 0 and less than or equal to 100
{0, 100}
{0, 30}
The domain of this situation is all real numbers greater than or equal to 0 and less than or equal to 30. This is because the student worked out continuously for 30 minutes, so the graph only includes values between 0 and 30 on the x-axis.
So what is the answer
The answer is "All real numbers greater than or equal to 0 and less than or equal to 30".
To determine the domain of this situation, we need to consider the possible values for time in minutes. According to the graph, time starts at 0 and goes up to 30 minutes. As such, the domain of this situation is all real numbers greater than or equal to 0 (since there can be no negative time) and less than or equal to 30.
Therefore, the correct answer is: All real numbers greater than or equal to 0 and less than or equal to 30.