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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
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    • one year ago
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  2. ghazi Group Title
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    \[(-\infty,\infty) \]

    • one year ago
  3. hiralpatel121 Group Title
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    Why?

    • one year ago
  4. ghazi Group Title
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    because your function is y=3x+7 and this is defined for whole real numbers

    • one year ago
  5. ghazi Group Title
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    @hiralpatel121 clear??

    • one year ago
  6. hiralpatel121 Group Title
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    Okay. So the the answer is the same for both the domain and the range?

    • one year ago
  7. hartnn Group Title
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    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)

    • one year ago
  8. ghazi Group Title
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    yes

    • one year ago
  9. hartnn Group Title
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    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.

    • one year ago
  10. hartnn Group Title
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    still doubts regarding this?

    • one year ago
  11. hiralpatel121 Group Title
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    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.

    • one year ago
  12. hartnn Group Title
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    find all x where f(x)=304 this??

    • one year ago
  13. ghazi Group Title
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    3x+7=304 3x=304-7 3x=297 x=99

    • one year ago
  14. hiralpatel121 Group Title
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    That would be the answer for where f(x)=304?

    • one year ago
  15. ghazi Group Title
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    yes

    • one year ago
  16. hiralpatel121 Group Title
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    What about parts (d) and (e) for number 1? How would I do those?

    • one year ago
  17. hartnn Group Title
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    for part e, same logic as #2 same domain,range.

    • one year ago
  18. ghazi Group Title
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    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

    • one year ago
  19. ghazi Group Title
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    your graph will tell you the domain and range

    • one year ago
  20. hiralpatel121 Group Title
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    Okay, thank you.

    • one year ago
  21. ghazi Group Title
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    :) YW

    • one year ago
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