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anonymous

  • one year ago

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  1. anonymous
    • one year ago
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    A cell phone plan has a monthly cost that is shown in the table below. What is the correct statement regarding the average rate of change during the 40-minute time of talk? Total minutes of talk time Monthly cost of cell phone 0 $14.95 10 $15.95 20 $16.95 30 $17.95 40 $18.95 The average rate of change is $1.00, meaning that for every ten minutes of talk time, the monthly bill increases by $1.00. The average rate of change is $1.00, meaning that for each minute of talk time, the monthly bill increases by $0.10. The average rate of change is $0.10, meaning that for every ten minutes of talk time, the bill increases by $0.10. The average rate of change is $0.10, meaning that for each minute of talk time, the monthly bill increases by $0.10.

  2. anonymous
    • one year ago
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    @dan815

  3. anonymous
    • one year ago
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    @hartnn

  4. AlexandervonHumboldt2
    • one year ago
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    you see that the difference between 15.95-14.95, 16.95-15.95, 17.95-16.95 and 18.95-17.5 all equals to 1$. each 10 min=1$ what do you think the answer is?

  5. AlexandervonHumboldt2
    • one year ago
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    woops i meant 18.95-17.95 instead of 18.95-17.5

  6. anonymous
    • one year ago
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    I think it is A.

  7. AlexandervonHumboldt2
    • one year ago
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    yes you are correct

  8. anonymous
    • one year ago
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    Thank you!!!

  9. AlexandervonHumboldt2
    • one year ago
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    np

  10. anonymous
    • one year ago
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    it wasn't A

  11. anonymous
    • one year ago
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    you have to divide the difference in cost by the difference minutes. You know the cost changes by $1/month. the minutes are changing by 10. rate of change = 1/10

  12. anonymous
    • one year ago
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    So B?

  13. anonymous
    • one year ago
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    no. what's 1/10 as a decimal?

  14. anonymous
    • one year ago
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    idk 0.1?

  15. anonymous
    • one year ago
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    yeah, that's your rate of change

  16. anonymous
    • one year ago
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    so every 1 minute more of talk adds $0.10 to the bill

  17. anonymous
    • one year ago
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    Sooooo B?

  18. skullpatrol
    • one year ago
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    Don't question yourself, instead convince yourself you have the right answer.

  19. anonymous
    • one year ago
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    YES BBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBB????

  20. anonymous
    • one year ago
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    does that match the rate of change you found?

  21. anonymous
    • one year ago
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    Im confused because he said no when i said B so idk witch one it is.

  22. anonymous
    • one year ago
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    A) The average rate of change is $1.00, meaning that for every ten minutes of talk time, the monthly bill increases by $1.00. B) The average rate of change is $1.00, meaning that for each minute of talk time, the monthly bill increases by $0.10. C) The average rate of change is $0.10, meaning that for every ten minutes of talk time, the bill increases by $0.10. D) The average rate of change is $0.10, meaning that for each minute of talk time, the monthly bill increases by $0.10.

  23. anonymous
    • one year ago
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    B correct?

  24. skullpatrol
    • one year ago
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    Only YOU can remove that question mark.

  25. anonymous
    • one year ago
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    ????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????

  26. skullpatrol
    • one year ago
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    lol

  27. anonymous
    • one year ago
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    thats my brain rn

  28. anonymous
    • one year ago
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    ok. starting from the top, the rate of change is \[\frac{ y_2-y_1 }{ x_2-x_2 }\] Pick two points from your table, the y's are the cost and the x's are the minutes

  29. anonymous
    • one year ago
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    Its b

  30. skullpatrol
    • one year ago
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    that is the nature of math

  31. anonymous
    • one year ago
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    Happy no questiomark @skullpatrol

  32. skullpatrol
    • one year ago
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    good job :-)

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