Select all representations for the domain of a function given by the number of minutes spent practicing your instrument for the last two hours.

Question

Select all representations for the domain of a function given by the number of minutes spent practicing your instrument for the last two hours.

There are two correct answers, and both must be chosen to receive credit for this question.

Responses
{x|0 less than or equal to x less than or equal to 120}
(0,120)
[0,120]
[0,120)
[0, ∞)
{x|x greater than 120}
(120, ∞)
{x|x ∈ R}

Answer 1

{x|0 less than or equal to x less than or equal to 120}

[0,120]