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anonymous

  • one year ago

(FAN AND MEDAL) help please!!! Graph each function using at least 3 points for each line. All graphs should be placed together on the same coordinate plane, so be sure to label each line

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  1. anonymous
    • one year ago
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    @ganeshie8 help me please!!!

  2. anonymous
    • one year ago
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    @pinkbubbles @Vocaloid ???

  3. anonymous
    • one year ago
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    @mathstudent55

  4. anonymous
    • one year ago
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    @DaBest21

  5. anonymous
    • one year ago
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    help please!!!

  6. anonymous
    • one year ago
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    @Vocaloid ???

  7. anonymous
    • one year ago
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    @Kash_TheSmartGuy

  8. Vocaloid
    • one year ago
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    what are the functions?

  9. anonymous
    • one year ago
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    i dont know :/

  10. anonymous
    • one year ago
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    @Vocaloid

  11. anonymous
    • one year ago
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    @DanJS

  12. Vocaloid
    • one year ago
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    is there any other information provided in the problem?

  13. anonymous
    • one year ago
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    wait

  14. anonymous
    • one year ago
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    k

  15. Vocaloid
    • one year ago
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    please post everything here

  16. anonymous
    • one year ago
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    Student Amber Ben Carter Description Amber shared her photo with 3 people. They continued to share it, so the number of shares increases every day as shown by the function. Ben shared his post with 2 friends. Each of those friends shares with 3 more every day, so the number of shares triples every day. Carter shared his post with 10 friends, who each share with only 2 people each day. Social Media Post Shares f(x) = 3(4)x Day Number of Shares 0 2 1 6 2 18 Carter shared his post with 10 friends, who each share with only 2 people each day.

  17. anonymous
    • one year ago
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    @Vocaloid

  18. anonymous
    • one year ago
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    are you there? @Vocaloid ???

  19. Vocaloid
    • one year ago
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    @Nnesha having a bit of trouble making sense of this problem, the information in the table, function, and word problem aren't really matching up

  20. anonymous
    • one year ago
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    @Nnesha have the same problem? @Vocaloid ?

  21. Vocaloid
    • one year ago
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    maybe take a screenshot?

  22. anonymous
    • one year ago
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    ok give a sec

  23. Vocaloid
    • one year ago
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    is there something you need from me?

  24. Vocaloid
    • one year ago
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    please tag me in a separate question

  25. anonymous
    • one year ago
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    1 Attachment
  26. anonymous
    • one year ago
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    you see the table @Vocaloid ???

  27. Vocaloid
    • one year ago
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    alright, that makes it much more clear now, let's get started

  28. Vocaloid
    • one year ago
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    we need to write functions for all three people (Amber, Ben, and Carter) the problem already gives us Amber's function f(x) = 3(4)^x, let's remember that for later now, the general form of an exponential function is f(x) = (starting number)(ratio)^x let's find Ben's function. how many shares did he have on day 0?

  29. anonymous
    • one year ago
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    ben 2(3)^x carter 10(2)^x

  30. anonymous
    • one year ago
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    right?

  31. phi
    • one year ago
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    yes

  32. anonymous
    • one year ago
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    so whats nexts? or thats the answer?

  33. phi
    • one year ago
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    to graph them, they want you to find 3 points. They give you 3 points for Ben You need points for the other 2

  34. phi
    • one year ago
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    You answers 1 and 2 now you are doing part 3. graphing

  35. phi
    • one year ago
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    *answered

  36. phi
    • one year ago
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    I would use x=0 , 1 and 2 remember any number to the 0 power is 1 for amber (at x=0) \[ 3\cdot 4^0= 3 \cdot 1 = 3\] which means (0,3) is the first point for amber. now do x=1 and x=2

  37. anonymous
    • one year ago
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    i need to solve?

  38. anonymous
    • one year ago
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    @phi

  39. phi
    • one year ago
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    solve is not the word. Evaluate which means, if you have a formula and you "put in a number" for x, you get out a new number (the "y" value) For amber, the formula is f(x)= 3*4^x I showed how to find f(0) (which means the y value when x is 0) you replace x with 0, like this f(0)= 3* 4^0 order of operations: do the exponent first.... 4^0 = 1 (special rule about 0, remember?) then 3*1 which is 3 we get f(0)= 3 which means y is 3 and the (x,y) pair is (0,3) now do that with x=1

  40. phi
    • one year ago
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    Can you find the y value when x=1 for Amber?

  41. anonymous
    • one year ago
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    y=4?

  42. phi
    • one year ago
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    Let's see: f(x)= 3*4^x with x=1 we write f(1) = 3* 4^1 is that 4?

  43. anonymous
    • one year ago
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    no

  44. phi
    • one year ago
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    remember order of operations \[ 3 \cdot 4^1 \] first do exponents. what is \(4^1\) ?

  45. phi
    • one year ago
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    the "little 1" as an exponent as in 4^1 gives 4 (try it on a calculator)

  46. anonymous
    • one year ago
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    its 4

  47. anonymous
    • one year ago
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    @phi

  48. phi
    • one year ago
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    yes, and f(1)= 3*4 = 12

  49. phi
    • one year ago
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    so the points for amber are (0,3), (1,12) now do x=2 can you do that ?

  50. anonymous
    • one year ago
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    no, but let me try

  51. phi
    • one year ago
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    write each step

  52. anonymous
    • one year ago
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    f(x)= 3*2^x with x=2 we write f(1) = 3* 2^1 2^1= 2?

  53. phi
    • one year ago
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    First, what equation do we use for amber?? (always good to start out with the correct one)

  54. anonymous
    • one year ago
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    so, i did wrong?

  55. anonymous
    • one year ago
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    @phi ???

  56. phi
    • one year ago
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    you started with the wrong formula

  57. phi
    • one year ago
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    please be careful. write down the formula for Amber. then on the next line. *erase the x* and put 2 in its place. what does the line look like after you do that?

  58. phi
    • one year ago
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    look at the question. they give you the formula for Amber. Write it down here.

  59. anonymous
    • one year ago
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    F(x)=3(4)^x?

  60. anonymous
    • one year ago
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    @phi

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