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GoldRush18 Group Title

Sandra uses two mobile cell phones( a digicel and a lime phone), to make her monthly calls. Sandra budget only $7000 on telephone calls per month and the cost per minute for digicel and lime are $5.00 and $7.00 respectively. a. Write down the algebraic equation for Sandra's budget constraint. b. Graph then Sandra's budget constraint. ( the budget constraint intercepts should be shown clearly on the graph) c. How will an increase in the cost per minute for digicel call affect the budget line's y_intercept, x-intercept and the slope?

  • 2 years ago
  • 2 years ago

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  1. ChmE Group Title
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    a) 7000 = 5x + 7y , where x is digicel and y is lime

    • 2 years ago
  2. GoldRush18 Group Title
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    i had that for a and i thought mine was wrong, now im understanding :)

    • 2 years ago
  3. ChmE Group Title
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    it could be 7000 > 5x + 7y

    • 2 years ago
  4. ChmE Group Title
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    because she can't go over but can be under

    • 2 years ago
  5. GoldRush18 Group Title
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    oh i get it

    • 2 years ago
  6. GoldRush18 Group Title
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    bcuz the 7000 is her budget

    • 2 years ago
  7. GoldRush18 Group Title
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    so wat about part b and c

    • 2 years ago
  8. ChmE Group Title
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    part b is asking for a budget constraint line and part be also said equation for budget restraint. I would put 7000 = 7x + 5y as the answer for part a because that is the restraint line. Something that she can't go over

    • 2 years ago
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    part b is kinda difficult. You should solve for y so the equation is in y = mx + b form then you can graph it. label your axis according to what cell phone. So if we solve for y, the y axis will be the lime phone

    • 2 years ago
  10. ChmE Group Title
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    part c I would just pick an increased amount for the cost per minute. graph that as well, and you should easily be able to see the differences from there

    • 2 years ago
  11. ChmE Group Title
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    let me know what you got solving for y or x and I'll check you. You should be fine from there

    • 2 years ago
  12. GoldRush18 Group Title
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    oh im not good at graphs thats why i need the help

    • 2 years ago
  13. GoldRush18 Group Title
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    ok i got y=1000 and x=1400

    • 2 years ago
  14. ChmE Group Title
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    so those are the intercepts, What is the equation?

    • 2 years ago
  15. GoldRush18 Group Title
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    |dw:1351254063633:dw|

    • 2 years ago
  16. GoldRush18 Group Title
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    is it that?

    • 2 years ago
  17. ChmE Group Title
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    7000 = 5x + 7y 7000 - 5x = 7y 1000 - (5/7)x = y The graph looks correct.

    • 2 years ago
  18. ChmE Group Title
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    lets change the cost of digicel to 10 for easy math sake

    • 2 years ago
  19. ChmE Group Title
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    7000 = 10x + 7y (0,1000) (700,0)

    • 2 years ago
  20. ChmE Group Title
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    |dw:1351258124097:dw|

    • 2 years ago
  21. ChmE Group Title
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    So what do you think the answers are for c

    • 2 years ago
  22. GoldRush18 Group Title
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    i think that as the cost per minute for digicel increase then the budget line will become steeper, is it?

    • 2 years ago
  23. ChmE Group Title
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    Because the x and y can easily be switched between the diff cell phones make sure you are stating your assumption of what x and y are along the way. You shouldn't be wrong because it doesn't say what each should be. That is correct. Technically it gets more negative. laymen's term steeper. What about the intercepts?

    • 2 years ago
  24. GoldRush18 Group Title
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    ok thanks i knw what u mean but im not sure how to explain it in terms of intercepts.

    • 2 years ago
  25. ChmE Group Title
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    Look at the lime intercept of the 2 graphs. Do they change? same for the digicel, do they change

    • 2 years ago
  26. GoldRush18 Group Title
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    ok the y axis which is lime does not change but the x axis which is digicel changes when price increase, im trying to answer

    • 2 years ago
  27. ChmE Group Title
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    correct for lime, it stays the same. How does the digicel change

    • 2 years ago
  28. GoldRush18 Group Title
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    the digicel changes because there was an increase in the cost.

    • 2 years ago
  29. ChmE Group Title
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    correct but in what way does it change? That is how you need to answer this question

    • 2 years ago
  30. ChmE Group Title
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    increase of decrease

    • 2 years ago
  31. ChmE Group Title
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    or**

    • 2 years ago
  32. GoldRush18 Group Title
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    oh the x intercept decreases

    • 2 years ago
  33. ChmE Group Title
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    right. Good job and good luck

    • 2 years ago
  34. GoldRush18 Group Title
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    omg thank u so much, im understanding so much better now

    • 2 years ago
  35. ChmE Group Title
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    What are your other questions?

    • 2 years ago
  36. GoldRush18 Group Title
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    do u have an email address, its in a word document

    • 2 years ago
  37. ChmE Group Title
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    wow that assignment is awful

    • 2 years ago
  38. GoldRush18 Group Title
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    i know right, and its like we have to research it because they haven't though us as yet

    • 2 years ago
  39. GoldRush18 Group Title
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    taught*

    • 2 years ago
  40. ChmE Group Title
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    is this due on monday? If this my my assignment I'd be all over google. Even copy and past questions in. Sometimes you get lucky.

    • 2 years ago
  41. ChmE Group Title
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    I took econ 3 years ago. I can't remember the other questions sry.

    • 2 years ago
  42. GoldRush18 Group Title
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    ok

    • 2 years ago
  43. GoldRush18 Group Title
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    thanks anyway

    • 2 years ago
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