Question 1181881
<font color=black size=3>
Domain: Real numbers t such that {{{t >= 0}}}


This is because negative time values do not make any sense. So we make t nonnegative. 


The domain in interval notation is [0, infinity)
We can think of it like 0 <= t < infinity
The use of the square bracket says to include the endpoint 0.
</font>