3 answers
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{x| x≥0}
[0, ∞)
(0, ∞)
{x| x∈R}
{x| x>0}
Responses
{x| x≥0}
{x| x≥0}
[0, ∞)
[0, ∞)
(−∞, ∞)
(−∞, ∞)
(0, ∞)
(0, ∞)
{x| x∈R}
{x| x∈R}
{x| x>0}
[0, ∞)
(0, ∞)
{x| x∈R}
{x| x>0}
{x| x≥0}
[0, ∞)
(0, ∞)
In this case, time passed since your last meal cannot be negative because time cannot go backwards. Therefore, the domain starts from 0 (or greater than or equal to 0). This is represented as {x | x ≥ 0} or [0, ∞).
Additionally, since time must always be a positive value (as time cannot be negative), we can also represent the domain as {x | x > 0} or (0, ∞).
Hence, the correct representations for the domain of the function in this case are:
- {x | x ≥ 0} or [0, ∞)
- {x | x > 0} or (0, ∞)