The domain of a function are its possible input values
The domain of the function is (b) all real numbers greater than or equal to 0.
From the graph, we have the following observations
- t represents time (it is plotted on the x-axis)
- t starts at 0
- t has no end
The above observations imply that; the domain starts from 0
Hence, the domain of the function is the set of all real numbers greater than or equal to 0.
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