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What is the domain and range in interval notation of problem #2 in the attached document?

Mathematics
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1 Attachment
\[(-\infty,\infty) \]
Why?

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Other answers:

because your function is y=3x+7 and this is defined for whole real numbers
Okay. So the the answer is the same for both the domain and the range?
domain means all the values that t can take so that the function does not become complex,or become undefined if we observe in V(t) = -203t+9655 for any value of t ,V(t) will be defined. so domain=(-infinity,infinity)
yes
range mean all the values V(t) can take as its a linear function,it can take infinite values depending on infinite values of t hence range is same.
still doubts regarding this?
No, I've got it. I need help with doing parts of number 1 though. I tried to do it but then I got confused.
find all x where f(x)=304 this??
3x+7=304 3x=304-7 3x=297 x=99
That would be the answer for where f(x)=304?
yes
What about parts (d) and (e) for number 1? How would I do those?
for part e, same logic as #2 same domain,range.
you have set of points like let's say two variables are x and y now you have (-6,-11) , (-2,1) and (0,7) plot this on graph paper
your graph will tell you the domain and range
Okay, thank you.
:) YW

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