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anonymous

  • one year ago

can anyone help me??? please!!!!

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  1. anonymous
    • one year ago
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    Julie is at the store buying groceries. She needs to get a quart of orange juice and some peaches. The quart of orange juice costs $2.25 and the peaches are $0.75 each. The function f(x) = 0.75x + 2.25 represents Julie's expenses at the grocery store. What do the f(x) and the x represent?

  2. anonymous
    • one year ago
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    A:f(x) represents the number of items purchased at the grocery store; x represents the number of peaches purchased B:f(x) represents the total cost of the grocery bill; x represents the cost per peach C: f(x) represents the number of items purchased at the grocery store; x represents the cost per peach D: f(x) represents the total cost of the groceries; x represents the number of peaches purchased

  3. anonymous
    • one year ago
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    Orange juice cost $2.25 right? and Peaches are 0.75 which is 75 cents the word "each" is how many.

  4. anonymous
    • one year ago
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    If she buys 1 peach it is 75 cents 2 peaches is $1.50 3 peaches is $2.25

  5. anonymous
    • one year ago
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    so would it be D

  6. anonymous
    • one year ago
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    Yes, it is. Nice job.

  7. anonymous
    • one year ago
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    thank you but can you help me with another question? @shalante

  8. anonymous
    • one year ago
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    Yes.

  9. anonymous
    • one year ago
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    Which of the following exponential functions goes through the points (1, 6) and (2, 12)?

  10. anonymous
    • one year ago
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    f(x) = 3(2)x f(x) = 2(3)x f(x) = 3(2)−x f(x) = 2(3)−x

  11. anonymous
    • one year ago
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    2. The balance in two separate bank accounts grows each month at different rates. The growth rates for both accounts are represented by the functions f(x) = 2x and g(x) = 4x + 12. In what month is the f(x) balance greater than the g(x) balance?

  12. anonymous
    • one year ago
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    can you write the choices in draw mode?

  13. anonymous
    • one year ago
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    what do you mean

  14. anonymous
    • one year ago
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    |dw:1439596152736:dw| like this.

  15. anonymous
    • one year ago
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    |dw:1439596167634:dw|

  16. anonymous
    • one year ago
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    sorry for the bad writing

  17. anonymous
    • one year ago
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    Do this first: \[(a)^b \], then multiply the outside.

  18. anonymous
    • one year ago
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    how do i do that?

  19. anonymous
    • one year ago
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    Plug in the 1 from (1,6) and 2 from (2,12) and see if it matches.

  20. anonymous
    • one year ago
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    like do you want me to do slope formula

  21. anonymous
    • one year ago
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    So replace the x with 1 to see if it equals to 6 replace the x with 2 to see if it equals to 12 No, read your question again.

  22. anonymous
    • one year ago
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    You told me to help you with another problem and you posted 2 more. Only one at a time please. It is confusing...

  23. anonymous
    • one year ago
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    ok wait

  24. anonymous
    • one year ago
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    I would help you one problem at a time. So one by one.

  25. anonymous
    • one year ago
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    ok they match

  26. anonymous
    • one year ago
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    @Shalante

  27. anonymous
    • one year ago
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    Which particular one?

  28. anonymous
    • one year ago
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    f(x)=3(2)^x

  29. anonymous
    • one year ago
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    Yes that is correct. Nice!

  30. anonymous
    • one year ago
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    so would that be the answer @Shalante

  31. anonymous
    • one year ago
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    Yes, it is the only one that goes through (1,6) and (2,12)

  32. anonymous
    • one year ago
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    what about the 3rd question how do solve it

  33. anonymous
    • one year ago
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    is there a graph of it?

  34. anonymous
    • one year ago
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    no there is no graph just multiple choice: Month 6 Month 5 Month 4 Month 3

  35. anonymous
    • one year ago
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    just letting you know 2x is \[2x\] and 2^x is \[2^x\]

  36. anonymous
    • one year ago
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    so is \[f(x)=2^x\]

  37. anonymous
    • one year ago
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    so what would i have to do??????? @Shalante

  38. anonymous
    • one year ago
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    write me the f(x) and g(x) equation on the word problem.

  39. anonymous
    • one year ago
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    f(x) = 2x and g(x) = 4x + 12.

  40. anonymous
    • one year ago
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    for the second problem, you wrote the equation wrong, so I asked you to draw it out. I am sure you wrote down the function to the 3rd problem (word problem) wrong also Did you see your mistake for the second problem you wrote down earlier?

  41. anonymous
    • one year ago
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    no

  42. anonymous
    • one year ago
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    You wrote down 3(2)x for the first choice. It is supposed to be 3(2)^x You see the arrow between 2 and x. That represents the x is going up making it an exponent.

  43. anonymous
    • one year ago
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    yea i see that now

  44. anonymous
    • one year ago
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    3(2)x is 3 times 2x 3(2)^x is \[3(2)^x\]

  45. anonymous
    • one year ago
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    the 3rd problem is saying at what x is f(x)=2x greater than g(x)=4x+12 f(x) can never be greater than g(x). You probably wrote the equation wrong..

  46. anonymous
    • one year ago
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    Probably forgot exponent sign.

  47. anonymous
    • one year ago
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    yea i wrote that wrong

  48. anonymous
    • one year ago
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    ill rewrite the 3rd question

  49. anonymous
    • one year ago
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    The balance in two separate bank accounts grows each month at different rates. The growth rates for both accounts are represented by the functions f(x) = 2x and g(x) = 4x + 12. In what month is the f(x) balance greater than the g(x) balance?

  50. anonymous
    • one year ago
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    @Shalante

  51. anonymous
    • one year ago
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    Still does not make sense -_- Can you write f(x) and g(x) in draw mode

  52. anonymous
    • one year ago
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    |dw:1439597961464:dw|

  53. anonymous
    • one year ago
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    for f(x) 2 has an exponent of x and g(x) does not have an exponent of x

  54. anonymous
    • one year ago
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    Look at the f(x) between your draw mode and what you wrote. You did not see your mistake..

  55. anonymous
    • one year ago
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    Remember the rules I told you when writing an exponent. Now write f(x) without draw mode.

  56. anonymous
    • one year ago
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    this time i wrote it exactly how the question gave it to me

  57. anonymous
    • one year ago
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    Now write f(x) without draw mode.

  58. anonymous
    • one year ago
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    do you think you can just help me because i am taking an exam

  59. anonymous
    • one year ago
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    I am helping. You are not paying attention.

  60. anonymous
    • one year ago
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    Scroll back up and read everything I wrote again until you understand.

  61. anonymous
    • one year ago
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    ok nevermind i found the answer but thanks anyways

  62. anonymous
    • one year ago
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    No problem!

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