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LazyBoy

  • 2 years ago

give an example of a function. Give the relation as a set of ordered pairs. Use a test such as mapping or the verical line test to show if your set of ordered pairs is a function. An example of a function could be: distance traveled and time, or the cost of a turkey and its weight. You can list your relation as a set of ordered pairs, or as a table. In either case, you must prove the relation is a function

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  1. LazyBoy
    • 2 years ago
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    @nincompoop

  2. nincompoop
    • 2 years ago
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    try doing the function of time by distances traveled so in a graph: |dw:1366300640356:dw|

  3. LazyBoy
    • 2 years ago
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    okay

  4. nincompoop
    • 2 years ago
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    functions are written in this format f(x)= some equation this is similar to y = mx + b the f(x) is the y read a little bit about functions http://finedrafts.com/files/math/precal/Larson%20PreCal%208th/Larson%20Precal%20CH2.pdf

  5. nincompoop
    • 2 years ago
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    so for example: a car is traveling 60 kilometers per hour (we need to label our graph accordingly). we need to be able to show how long will it take for a car to travel 35 miles, 45 miles and maybe 50 miles.

  6. LazyBoy
    • 2 years ago
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    Okay, I see

  7. LazyBoy
    • 2 years ago
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    Whats next?

  8. LazyBoy
    • 2 years ago
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    well thanks for the help anyway! :)

  9. nincompoop
    • 2 years ago
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    |dw:1366301197869:dw|

  10. LazyBoy
    • 2 years ago
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    Is that it or is that only a small step for the "big picture"

  11. nincompoop
    • 2 years ago
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    big picture. you need to be able to represent your equation graphically and mathematically

  12. nincompoop
    • 2 years ago
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    can you come up with a formula that determines the function of time?

  13. nincompoop
    • 2 years ago
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    we said that the the rate of speed is 60 km/hr so in minutes: that is 60 km/60 mins since 1 hour is 60 mins 60/60 is 1. So now, we have 1 km/min D=f(t)=1t if we want to use the rate rate per minute D=f(f)=60t if we want to use the rate per hour

  14. LazyBoy
    • 2 years ago
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    I am sorry I was busy, now I am back

  15. nincompoop
    • 2 years ago
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    typo on my previous post it's D = f(t) = 60t

  16. LazyBoy
    • 2 years ago
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    oh okay

  17. nincompoop
    • 2 years ago
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    so pretty much there's your equation and you can do your algebra to determine time or distance

  18. LazyBoy
    • 2 years ago
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    okay, but I am not sure how I am supposed to submit my assignment. I mean like what information should I include and how should i write it

  19. nincompoop
    • 2 years ago
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    you can now apply it to the example we want to use

  20. nincompoop
    • 2 years ago
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    it's written just like how I've written them. you might want to rephrase. Did you read the link I sent you?

  21. LazyBoy
    • 2 years ago
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    yes, I did

  22. LazyBoy
    • 2 years ago
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    You wrote so much I am not sure what I am supposed to use

  23. nincompoop
    • 2 years ago
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    so what don't you understand?

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