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bobobox

  • one year ago

Generic algebra help would be lovely

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  1. bobobox
    • one year ago
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    @jim_thompson5910

  2. bobobox
    • one year ago
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  3. bobobox
    • one year ago
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    the real person who deserves the medal is @jim_thompson5910

  4. UsukiDoll
    • one year ago
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    yeah but you have attempted the problem too... so I give medals off based on explanations or attempts.

  5. UsukiDoll
    • one year ago
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    you can click on the best response button for jim to give him a medal. I can only medal once.

  6. bobobox
    • one year ago
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    i shall and I will

  7. UsukiDoll
    • one year ago
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    so anyway we have an equation y = 500+50x Every straight line can be expressed in the form y = mx +b where m = slope and b = y-intercept

  8. UsukiDoll
    • one year ago
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    hmm.. maybe rewriting this might help y = 50x+500

  9. bobobox
    • one year ago
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    This is all new to me so if you can explain this to me in really really really simple form it would be very much apreciated

  10. UsukiDoll
    • one year ago
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    however... there's also this fact too... to find the y-intercept, set x to 0

  11. UsukiDoll
    • one year ago
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    I could try... :/ your question is A company is paying a local television station to run its commercials. The cost of running commercials is a one time campaign fee and also a per-second fee for the air time of each commercial. The cost can be modeled by the equation y = 500+50x where x is in seconds. What is the y-intercept and what does it represent?

  12. UsukiDoll
    • one year ago
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    given . . . the model of the equation is y = 500+50x x is in seconds the costs includes a one time campaign fee and also a per-second fee.

  13. bobobox
    • one year ago
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    okay so I am going to figure out the y intercept

  14. UsukiDoll
    • one year ago
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    ok.

  15. bobobox
    • one year ago
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    500?

  16. UsukiDoll
    • one year ago
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    to find the y-intercept we set our x to 0 y=500+50(0) y =500+0 = 500

  17. UsukiDoll
    • one year ago
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    now we just have to figure out what that 500 means

  18. bobobox
    • one year ago
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    okay...

  19. bobobox
    • one year ago
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    I hate these riddles, teachers call math problems

  20. UsukiDoll
    • one year ago
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    It's based on word order. (I think?) The cost of running commercials is a one time campaign fee and also a per-second fee for the air time of each commercial. oh yeah those problems are irritating.

  21. UsukiDoll
    • one year ago
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    @jim_thompson5910 Helllllllppppppp D:!

  22. bobobox
    • one year ago
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    @jim_thompson5910 please

  23. UsukiDoll
    • one year ago
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    I need a second opinion.. i know to find y-intercept set x to 0

  24. jim_thompson5910
    • one year ago
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    UsukiDoll you have the right idea. Plug in x = 0

  25. UsukiDoll
    • one year ago
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    so I got 500, but what the heck does it represent?

  26. bobobox
    • one year ago
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    yeah

  27. UsukiDoll
    • one year ago
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    the word order matters when it comes to these problems....I think it's campaign fee.

  28. jim_thompson5910
    • one year ago
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    it's the one time fee you always pay no matter how much airtime you get the +50x means "add 50 dollars per second of airtime used up"

  29. UsukiDoll
    • one year ago
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    but we set x to 0 when we had to find the y-intercept

  30. jim_thompson5910
    • one year ago
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    so the campaign makes a downpayment of $500 if it uses 30 seconds of airtime, then it pays 50*30 = 1500 extra dollars

  31. jim_thompson5910
    • one year ago
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    yeah plugging in x = 0

  32. UsukiDoll
    • one year ago
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    ???????????????!

  33. bobobox
    • one year ago
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    okay so.....you pre pay 500 dollars is that what it represents?

  34. UsukiDoll
    • one year ago
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    to find the y-intercept we set our x to 0 y=500+50(0) y =500+0 y=500

  35. UsukiDoll
    • one year ago
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    but wow the labels D:

  36. bobobox
    • one year ago
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    i know

  37. UsukiDoll
    • one year ago
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    let's break this down a bit A company is paying a local television station to run its commercials. The cost of running commercials is a one time campaign fee and also a per-second fee for the air time of each commercial. The cost can be modeled by the equation y = 500+50x where x is in seconds. What is the y-intercept and what does it represent?

  38. jim_thompson5910
    • one year ago
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    `okay so.....you pre pay 500 dollars is that what it represents?` yes, correct

  39. UsukiDoll
    • one year ago
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    that +50x must be the per-second fee ??

  40. jim_thompson5910
    • one year ago
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    yeah, the 50 to be specific

  41. bobobox
    • one year ago
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    okay.............

  42. UsukiDoll
    • one year ago
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    oh I see if x = 1 that's 1 second

  43. UsukiDoll
    • one year ago
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    50(1) = that's 50 bucks

  44. bobobox
    • one year ago
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    it either represents a one time fee or a per second fee

  45. UsukiDoll
    • one year ago
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    but we need the initial fee too y = 500+50(1) = 500+50 = 550 for one second

  46. UsukiDoll
    • one year ago
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    it's the setup initial fee... the x is the number of seconds.. so if you have 1 second airtime, that's $550

  47. bobobox
    • one year ago
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    okay... so it is b?

  48. UsukiDoll
    • one year ago
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    y = 500+50x for y -intercept if x = 0 we just have y = 500 that's just an initial fee with 0 seconds airtime

  49. bobobox
    • one year ago
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    okay that makes some sense now!

  50. UsukiDoll
    • one year ago
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    yeah... 500 is the one time initial fee you're paying.. then for x = number of seconds your fee goes up so if x = 50 y = 500+50(50) 500 <- initial fee 50<- airtime fee x = 50 <-- seconds here's your bill y = 500+250 =750

  51. UsukiDoll
    • one year ago
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    oops I meant 500+2500 = 3000

  52. UsukiDoll
    • one year ago
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    lack of sleep x.x

  53. bobobox
    • one year ago
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    ohhhhhhhhhhh okay this make sense now. So it's b

  54. UsukiDoll
    • one year ago
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    mhm :) yes it's b

  55. bobobox
    • one year ago
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    Are we sure because like I said I cant mess up @jim_thompson5910 what do you think...B?

  56. UsukiDoll
    • one year ago
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    putting this in words y = initial fee + airtime fee (seconds) yeah it's good to have a second opinion

  57. bobobox
    • one year ago
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    JUst to make sure even though it makes sense to me

  58. bobobox
    • one year ago
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    @jim_thompson5910

  59. UsukiDoll
    • one year ago
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    I'm trying to find another tutor.. he is busy right now

  60. bobobox
    • one year ago
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    hmmm

  61. UsukiDoll
    • one year ago
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    @perl help !

  62. bobobox
    • one year ago
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    @perl help

  63. jim_thompson5910
    • one year ago
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    you guys have it correct

  64. UsukiDoll
    • one year ago
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    yay!

  65. bobobox
    • one year ago
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    are we sure?

  66. jim_thompson5910
    • one year ago
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    yeah

  67. bobobox
    • one year ago
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    yay!

  68. bobobox
    • one year ago
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    kk im closeing this one and opening a new one!

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