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hiralpatel121 Group Title

What would the domain and range be?

  • one year ago
  • one year 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

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

    • one year ago
  4. andriod09 Group Title
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    |dw:1347377860332:dw|

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

    • one year 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.

    • one year ago
  7. andriod09 Group Title
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    the first numbers are x and the y are the last numbers

    • one year ago
  8. hiralpatel121 Group Title
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    So what would it be?

    • one year ago
  9. hiralpatel121 Group Title
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    I have graphed it and everything.

    • one year ago
  10. andriod09 Group Title
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    so you good?

    • one year ago
  11. hiralpatel121 Group Title
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    No

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

    • one year ago
  13. hiralpatel121 Group Title
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    Yes

    • one year ago
  14. hartnn Group Title
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    what values can s take ? any ?

    • one year ago
  15. hiralpatel121 Group Title
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    What do you mean?

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

    • one year 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)

    • one year 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.

    • one year 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.

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

    • one year 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)]

    • one year ago
  22. pradipgr817 Group Title
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    Is it clear?

    • one year ago
  23. hiralpatel121 Group Title
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    I don't get it.

    • one year ago
  24. pradipgr817 Group Title
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    :(

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

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

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

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

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

    • one year ago
  30. hiralpatel121 Group Title
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    So what's the range?

    • one year ago
  31. pradipgr817 Group Title
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    [-1077 infinity)

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

    • one year ago
  33. pradipgr817 Group Title
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    yes

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

    • one year ago
  35. pradipgr817 Group Title
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    first of all no. of radio cannot be 15.45

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

    • one year 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

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

    • one year ago
  39. hiralpatel121 Group Title
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    • one year ago
  40. pradipgr817 Group Title
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    all parts?

    • one year ago
  41. hiralpatel121 Group Title
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    Yes

    • one year ago
  42. pradipgr817 Group Title
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    a) (8, 45.7), (11, 48.1)

    • one year ago
  43. hiralpatel121 Group Title
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    Okay

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

    • one year 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

    • one year ago
  46. pradipgr817 Group Title
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    *known

    • one year 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

    • one year ago
  48. pradipgr817 Group Title
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    yes. you got it.

    • one year ago
  49. pradipgr817 Group Title
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    put x=15 and obtain output

    • one year ago
  50. hiralpatel121 Group Title
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    I got I = 51.3

    • one year ago
  51. pradipgr817 Group Title
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    so can you interpret the results?

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

    • one year ago
  53. pradipgr817 Group Title
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    will be

    • one year ago
  54. hiralpatel121 Group Title
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    Okay

    • one year ago
  55. pradipgr817 Group Title
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    what about the trend?

    • one year ago
  56. hiralpatel121 Group Title
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    I have no clue.

    • one year 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.

    • one year 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.

    • one year ago
  59. pradipgr817 Group Title
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    I hope you got it?

    • one year ago
  60. hiralpatel121 Group Title
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    Yes, I got it.

    • one year ago
  61. pradipgr817 Group Title
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    :)

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

    • one year ago
  63. pradipgr817 Group Title
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    ok no problem.

    • one year ago
  64. hiralpatel121 Group Title
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    • one year ago
  65. pradipgr817 Group Title
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    which part?

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

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

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

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

    • one year ago
  70. hiralpatel121 Group Title
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    Okay

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

    • one year 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)

    • one year ago
  73. pradipgr817 Group Title
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    let me know when you got something.

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

    • one year ago
  75. pradipgr817 Group Title
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    giv me 5 min

    • one year 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

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

    • one year ago
  78. pradipgr817 Group Title
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    got upto this?

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

    • one year 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

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

    • one year ago
  82. pradipgr817 Group Title
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    on page 9 formula are written use them.

    • one year ago
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