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anonymous

  • one year ago

I WILL MEDAL The price of products may increase due to inflation and decrease due to depreciation. Derek is studying the change in the price of two products, A and B, over time. The price f(x), in dollars, of product A after x years is represented by the function below: f(x) = 0.69(1.03)x Part A: Is the price of product A increasing or decreasing and by what percentage per year? Justify your answer. (5 points) Part B: The table below shows the price f(t), in dollars, of product B after t years: t (number of years) 1 2 3 4 f(t) (price in dollars) 10,100 10,201 10,303.01 10,406.04

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  1. anonymous
    • one year ago
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    Which product recorded a greater percentage change in price over the previous year?

  2. anonymous
    • one year ago
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    @IrishBoy123

  3. anonymous
    • one year ago
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    @Kainui @ganeshie8

  4. anonymous
    • one year ago
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    please help me @sammixboo @Hero

  5. anonymous
    • one year ago
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    @heretohelpalways please help

  6. anonymous
    • one year ago
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    I only need part B and c (help with), because a is: 12500(0.82)=10250, so it is decreasing by 2250, right?

  7. anonymous
    • one year ago
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    @undeadknight26 @TheSmartOne

  8. anonymous
    • one year ago
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    please helllppp Wait, I need a too, because i dont know what percent?

  9. anonymous
    • one year ago
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    @saseal

  10. anonymous
    • one year ago
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    @ali2x2

  11. anonymous
    • one year ago
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    what is 0.69(1.03)

  12. anonymous
    • one year ago
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    .7107

  13. anonymous
    • one year ago
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    what happens if you multiply any number by something smaller than 1?

  14. ali2x2
    • one year ago
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    k

  15. ali2x2
    • one year ago
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    PART I You know that this function is DECREASING because 0.63, the number inside of the parenthesis, is LESS THAN THE NUMBER 1. I [think I] know the way to determine by what percentage it is decreasing. [I think] My teacher taught me that I have to subtract the number, in this case 0.63, from 1. So, 1 - 0.63 = 0.37. So it is decreasing by 0.37.

  16. anonymous
    • one year ago
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    this thing is pretty intuitive

  17. ali2x2
    • one year ago
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    |dw:1438873866977:dw|

  18. ali2x2
    • one year ago
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    part B

  19. ali2x2
    • one year ago
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    im sorta confused sorry ;c ill do a google search

  20. ali2x2
    • one year ago
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    lmao or mr.doge here can help?

  21. anonymous
    • one year ago
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    sure

  22. anonymous
    • one year ago
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    what just happened..

  23. anonymous
    • one year ago
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    you got the first part right yet?

  24. anonymous
    • one year ago
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    ehhhh I am not sure, as of right now i have that it is decreasing by 37%

  25. anonymous
    • one year ago
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    0.69(1.03)=7.107 1-7.107=28.93%

  26. anonymous
    • one year ago
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    .69*1.03 is .7107

  27. anonymous
    • one year ago
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    you dont really need to care about whats inside or outside, multiplication is commutative

  28. anonymous
    • one year ago
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    yea f(x) = 0.69 * 1.03 * x

  29. anonymous
    • one year ago
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    you get it yet?

  30. anonymous
    • one year ago
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    The x is an exponent, so it is 1.03*.69^x..

  31. anonymous
    • one year ago
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    next time put that ^ sign

  32. anonymous
    • one year ago
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    lol sorry I didnt pick up that it didnt show till now, sorry.

  33. anonymous
    • one year ago
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    the function is actually increasing in that case

  34. anonymous
    • one year ago
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    its an exponential curve

  35. anonymous
    • one year ago
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    THE VALUE IN THE PARENTHESIS IS MORE THAN ONE. SO YAHHHH ITS INCREASING.

  36. anonymous
    • one year ago
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    so confused omfg

  37. anonymous
    • one year ago
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    regard the %, try plugging in x=0 and x=1 into the function

  38. anonymous
    • one year ago
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    f(x)=.69(1.03)^0 .69*1 .69, or 69%

  39. anonymous
    • one year ago
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    f(x)=.69(1.03)^1 .69* 1.03 .7107

  40. anonymous
    • one year ago
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    ok now take\[f(1)-f(0)\]

  41. anonymous
    • one year ago
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    .7107-.69

  42. anonymous
    • one year ago
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    yes

  43. anonymous
    • one year ago
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    .0207

  44. anonymous
    • one year ago
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    what % is 0.0207 of 0.69?

  45. anonymous
    • one year ago
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    .00014283

  46. anonymous
    • one year ago
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    wrong

  47. anonymous
    • one year ago
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    I am not sharp. Can you help?

  48. anonymous
    • one year ago
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    \[\frac{ 0.0207 }{ 0.69 } \times 100\]

  49. anonymous
    • one year ago
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    3

  50. anonymous
    • one year ago
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    3% increase

  51. anonymous
    • one year ago
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    part b is easy

  52. anonymous
    • one year ago
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    take year 2 - year 1

  53. anonymous
    • one year ago
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    okayy. so 101

  54. anonymous
    • one year ago
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    now find the percentage like what you just did for the previous part

  55. anonymous
    • one year ago
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    101%?

  56. anonymous
    • one year ago
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    no 10.1%?

  57. anonymous
    • one year ago
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    \[\frac{ 10201-10100 }{ 10100 } \times 100\]

  58. anonymous
    • one year ago
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    1%

  59. anonymous
    • one year ago
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    yes

  60. anonymous
    • one year ago
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    now the answer for part b is in front of you compare % of product a & b

  61. anonymous
    • one year ago
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    okay so product a: 3%, product b=1%?

  62. anonymous
    • one year ago
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    yes, and which is greater?

  63. anonymous
    • one year ago
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    PRODUCT A?

  64. anonymous
    • one year ago
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    yea

  65. anonymous
    • one year ago
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    sorry about caps

  66. anonymous
    • one year ago
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    np

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