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hiralpatel121 Group Title What is the domain and range in interval notation of problem #2 in the attached document? one year ago one year ago

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1. hiralpatel121 Group Title

2. ghazi Group Title

$(-\infty,\infty)$

3. hiralpatel121 Group Title

Why?

4. ghazi Group Title

because your function is y=3x+7 and this is defined for whole real numbers

5. ghazi Group Title

@hiralpatel121 clear??

6. hiralpatel121 Group Title

Okay. So the the answer is the same for both the domain and the range?

7. hartnn Group Title

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)

8. ghazi Group Title

yes

9. hartnn Group Title

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.

10. hartnn Group Title

still doubts regarding this?

11. hiralpatel121 Group Title

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.

12. hartnn Group Title

find all x where f(x)=304 this??

13. ghazi Group Title

3x+7=304 3x=304-7 3x=297 x=99

14. hiralpatel121 Group Title

That would be the answer for where f(x)=304?

15. ghazi Group Title

yes

16. hiralpatel121 Group Title

What about parts (d) and (e) for number 1? How would I do those?

17. hartnn Group Title

for part e, same logic as #2 same domain,range.

18. ghazi Group Title

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

19. ghazi Group Title

your graph will tell you the domain and range

20. hiralpatel121 Group Title

Okay, thank you.

21. ghazi Group Title

:) YW