Answer:
a. All real numbers between 0 and 7.5, except s = 5.5
b. The approximate speed of her current trip, if she takes 6 hours, is 4 kilometers per hour.
As we can see from the graph, we have a vertical asymptote at s = 5.5. This means that at x = 5.5, the given function is not defined. Therefore, the domain that Jada use instead is:
[tex]D\colon\mleft\lbrace s\mright|s\in R,0[tex]\text{ }[/tex]
Or:
[tex]0
The domain is all real numbers except s = 5.5
Next, let us find her approximate speed if the current trip takes 6 hours. As we can see from the graph, as y approaches 6, x is approaching 4. Since y = T(s), or the time, and s is the speed, we can assume that the approximate speed of her current trip, if she takes 6 hours, is 4 kilometers per hour.
