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anonymous

  • 5 years ago

kelli adds 5 new song to her MP3 player each week after 4 weeks she has 42 songs which equation in slope intercept form represents the total number of songs she has on her MP3 player after x weeks

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  1. anonymous
    • 5 years ago
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    ok so they're asking you how many songs she will have after x weeks, in slope intercept form

  2. anonymous
    • 5 years ago
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    they're giving you the slope - which is the rate of change each unit (in this case a week)

  3. anonymous
    • 5 years ago
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    that's one part of the slope intercept equation

  4. anonymous
    • 5 years ago
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    the other part is the constant

  5. anonymous
    • 5 years ago
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    from the information given, we know that "m" is "5" in the y=mx+b slope intercept equation - i.e. each week (unity on the x-axsis), 5 songes are added.

  6. anonymous
    • 5 years ago
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    so after four weeks, y (the number of songs) is 42, and we know the number of songs added each week was 5 - so really we just need the constant - the number of songs that kelli started with

  7. anonymous
    • 5 years ago
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    so y = mx +b, 42 = 5*4 +b

  8. anonymous
    • 5 years ago
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    42 = 20 + b

  9. anonymous
    • 5 years ago
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    b = 42 - 20 = 22

  10. anonymous
    • 5 years ago
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    so kellie started with 22 songs on the mp4 player (the constant), and adds 5 songs each week. the slope intercept equations is hence y= 5*x + 22

  11. anonymous
    • 5 years ago
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    does that makes sense?

  12. anonymous
    • 5 years ago
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    any particular part that doesn't make sense?

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