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hiralpatel121 Group Title

What would the domain and range be?

  • 2 years ago
  • 2 years ago

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  1. andriod09 Group Title
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    doamin is the x in a graph, while the range would be the y

    • 2 years ago
  2. hiralpatel121 Group Title
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    • 2 years ago
  3. hiralpatel121 Group Title
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    What would it be in the following attached docs?

    • 2 years ago
  4. andriod09 Group Title
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    |dw:1347377860332:dw|

    • 2 years ago
  5. andriod09 Group Title
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    use that. you have to answer the equations first.

    • 2 years ago
  6. hiralpatel121 Group Title
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    This is what the problems looked like. And the ones I attached earlier are the answers.

    • 2 years ago
  7. andriod09 Group Title
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    the first numbers are x and the y are the last numbers

    • 2 years ago
  8. hiralpatel121 Group Title
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    So what would it be?

    • 2 years ago
  9. hiralpatel121 Group Title
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    I have graphed it and everything.

    • 2 years ago
  10. andriod09 Group Title
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    so you good?

    • 2 years ago
  11. hiralpatel121 Group Title
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    No

    • 2 years ago
  12. hartnn Group Title
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    u need domain and range of P(s)=69.70s-1077 right?

    • 2 years ago
  13. hiralpatel121 Group Title
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    Yes

    • 2 years ago
  14. hartnn Group Title
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    what values can s take ? any ?

    • 2 years ago
  15. hiralpatel121 Group Title
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    What do you mean?

    • 2 years ago
  16. hartnn Group Title
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    is there any restriction on value of s ?

    • 2 years ago
  17. hiralpatel121 Group Title
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    First I found P(0) which equals (0, -1077). Then I found P(s) which equals (15.45, 0)

    • 2 years ago
  18. hiralpatel121 Group Title
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    Those are the two points. Now I have to graph it and then find the domain and range.

    • 2 years ago
  19. pradipgr817 Group Title
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    in order to make profit domain should be [16, max no of radio available] correspondingly you can find range.

    • 2 years ago
  20. hiralpatel121 Group Title
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    Wouldn't the domain be [0,-1077]?

    • 2 years ago
  21. pradipgr817 Group Title
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    lets say total no. of radio is a your function is P(s)=69.70s-1077 values of s is the domain at s=15.45 break even point occurs so at this point P(s)=0 But radio quantity is in integer so s=16. Nowo if he sells more than this only he will get profit i.e., [16 a] at 16 P(s)=0 and at s=a, P(a), so range is [P(16) P(a)]=[0 P(a)]

    • 2 years ago
  22. pradipgr817 Group Title
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    Is it clear?

    • 2 years ago
  23. hiralpatel121 Group Title
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    I don't get it.

    • 2 years ago
  24. pradipgr817 Group Title
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    :(

    • 2 years ago
  25. hiralpatel121 Group Title
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    So would range be [0, 15.45]?

    • 2 years ago
  26. pradipgr817 Group Title
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    lets solve together. you start I'll correct you

    • 2 years ago
  27. hiralpatel121 Group Title
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    I have already solved it earlier. [0, -1077] and [15.45, 0]

    • 2 years ago
  28. hiralpatel121 Group Title
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    Now the directions say to graph these points and then determine the domain and range.

    • 2 years ago
  29. pradipgr817 Group Title
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    in that answer is correct your domain is (0 infinity) [all possibilities included]

    • 2 years ago
  30. hiralpatel121 Group Title
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    So what's the range?

    • 2 years ago
  31. pradipgr817 Group Title
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    [-1077 infinity)

    • 2 years ago
  32. hiralpatel121 Group Title
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    Okay so Domain is [0, infinity) and Range is [-1077, infinity). Correct?

    • 2 years ago
  33. pradipgr817 Group Title
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    yes

    • 2 years ago
  34. hiralpatel121 Group Title
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    Why wouldn't the domain be [0, 15.45]?

    • 2 years ago
  35. pradipgr817 Group Title
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    first of all no. of radio cannot be 15.45

    • 2 years ago
  36. hiralpatel121 Group Title
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    Nevermind, I got it. Can you help me with one more problem?

    • 2 years ago
  37. pradipgr817 Group Title
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    second during this part only loss will occur. what about the profits? it will occur after your 15.45 so extend your range. finally max. no. of radio are not given so infinite number can exist. therefore domain is [0 infinity), not below zero as number of radio cannot be negative

    • 2 years ago
  38. pradipgr817 Group Title
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    Yea sure please ask. If I'll be able to help I'll surely do.

    • 2 years ago
  39. hiralpatel121 Group Title
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    • 2 years ago
  40. pradipgr817 Group Title
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    all parts?

    • 2 years ago
  41. hiralpatel121 Group Title
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    Yes

    • 2 years ago
  42. pradipgr817 Group Title
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    a) (8, 45.7), (11, 48.1)

    • 2 years ago
  43. hiralpatel121 Group Title
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    Okay

    • 2 years ago
  44. hiralpatel121 Group Title
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    Is (b) y = .8x+39.3 ?

    • 2 years ago
  45. pradipgr817 Group Title
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    you put the values of x and y in equation and solve it. I haven't solved it. To check you got it right put the know value and check the answer

    • 2 years ago
  46. pradipgr817 Group Title
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    *known

    • 2 years ago
  47. hiralpatel121 Group Title
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    m = 48.1-45.7/11-8 = -2.4/3 = .8 y-y1=m(x-x1) y-45.7 = .8(x-8) y-45.7 = .8x-6.4 y = .8x+39.3

    • 2 years ago
  48. pradipgr817 Group Title
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    yes. you got it.

    • 2 years ago
  49. pradipgr817 Group Title
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    put x=15 and obtain output

    • 2 years ago
  50. hiralpatel121 Group Title
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    I got I = 51.3

    • 2 years ago
  51. pradipgr817 Group Title
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    so can you interpret the results?

    • 2 years ago
  52. hiralpatel121 Group Title
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    "In 2015, PA's per capita income was $51.3 thousand." ??

    • 2 years ago
  53. pradipgr817 Group Title
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    will be

    • 2 years ago
  54. hiralpatel121 Group Title
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    Okay

    • 2 years ago
  55. pradipgr817 Group Title
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    what about the trend?

    • 2 years ago
  56. hiralpatel121 Group Title
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    I have no clue.

    • 2 years ago
  57. pradipgr817 Group Title
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    Initially in 2000, the income was 39.3 (your intercept). This per capita income increases unifomly, whose rate is given by the slope of the curve, which is 0.8.

    • 2 years ago
  58. pradipgr817 Group Title
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    and as the time will progress the per capita income will increase only. as per the equation, with increase in time it cannot decrease.

    • 2 years ago
  59. pradipgr817 Group Title
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    I hope you got it?

    • 2 years ago
  60. hiralpatel121 Group Title
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    Yes, I got it.

    • 2 years ago
  61. pradipgr817 Group Title
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    :)

    • 2 years ago
  62. hiralpatel121 Group Title
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    I need help with a few more whenever you're free.

    • 2 years ago
  63. pradipgr817 Group Title
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    ok no problem.

    • 2 years ago
  64. hiralpatel121 Group Title
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    • 2 years ago
  65. pradipgr817 Group Title
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    which part?

    • 2 years ago
  66. pradipgr817 Group Title
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    hey u thr? Is (a) solved.

    • 2 years ago
  67. hiralpatel121 Group Title
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    No. Neither of them are solved. I don't understand any of the parts.

    • 2 years ago
  68. pradipgr817 Group Title
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    use this to solve (a) http://en.wikipedia.org/wiki/Simple_linear_regression

    • 2 years ago
  69. pradipgr817 Group Title
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    you need to fit the data given to a equation.

    • 2 years ago
  70. hiralpatel121 Group Title
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    Okay

    • 2 years ago
  71. pradipgr817 Group Title
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    the line will be y=mx+c form.

    • 2 years ago
  72. pradipgr817 Group Title
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    find m first using the equations on web page(beta) then find c( alpha on web page)

    • 2 years ago
  73. pradipgr817 Group Title
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    let me know when you got something.

    • 2 years ago
  74. hiralpatel121 Group Title
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    Honestly, I have no idea how to do this.

    • 2 years ago
  75. pradipgr817 Group Title
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    giv me 5 min

    • 2 years ago
  76. pradipgr817 Group Title
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    see, t is years sine 2000. So subtract 2000 from years. You have 5, 7...11 as x. and ticket cost is y

    • 2 years ago
  77. pradipgr817 Group Title
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    now find the average of x and y separately.

    • 2 years ago
  78. pradipgr817 Group Title
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    got upto this?

    • 2 years ago
  79. hiralpatel121 Group Title
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    How would I find the average of x and y?

    • 2 years ago
  80. pradipgr817 Group Title
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    sum all numbers of x and divide by total number of values of x, similarly for y

    • 2 years ago
  81. pradipgr817 Group Title
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    use this it will help http://www2.isye.gatech.edu/~sman/courses/6739/SimpleLinearRegression.pdf

    • 2 years ago
  82. pradipgr817 Group Title
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    on page 9 formula are written use them.

    • 2 years ago
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