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freemap

  • one year ago

The function t(h) = 2h – 10 gives the outdoor temperature, in degrees Fahrenheit, h hours after midnight. What is the meaning of the y-intercept? A. The temperature was –10°F at midnight. B. The temperature was 5°F at midnight. C. The temperature was 0°F at 5 a.m. D. The temperature was 0°F at 10 a.m.

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  1. BloomLocke367
    • one year ago
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    Well, can you point out the y-intercept in the equation?

  2. freemap
    • one year ago
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    -10?

  3. texaschic101
    • one year ago
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    you mean the y int is -10

  4. BloomLocke367
    • one year ago
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    yes my bad XD my dad walked over and I got sidetracked while typing XD

  5. BloomLocke367
    • one year ago
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    When an equation is in the form of y=mx+b (which is what you have) m=slope and b=y-intercept, so yes, the y-intercept is -10 c:

  6. texaschic101
    • one year ago
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    look at it this way...the h = hours after midnight. so if you sub in 0 for h...0 hrs after midnight....you would get the temp at midnight. t(h) = 2h - 10 y = 2h - 10 y = 2(0) - 10 y = -10 so that is the temp at midnight

  7. freemap
    • one year ago
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    Makes sense leaving you with A for the correct answer

  8. texaschic101
    • one year ago
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    yep :)

  9. BloomLocke367
    • one year ago
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    Yep! :) @texaschic101 explained it better than what I could XD

  10. texaschic101
    • one year ago
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    don't know about that...I probably just confused the crap out of him...lol

  11. BloomLocke367
    • one year ago
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    haha XD

  12. freemap
    • one year ago
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    @texaschic101 has always been my tutor. She's one of the best. Great at helping confused people. Solves the most complicated problems. Thanks @texaschic101 I love to see when you come online

  13. texaschic101
    • one year ago
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    awww......* blushes *....thx

  14. freemap
    • one year ago
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    You earned it!

  15. texaschic101
    • one year ago
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    I try.....I am giving you an imaginary hug right now

  16. freemap
    • one year ago
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    awww so sweet, such a wonderful person, just because you know your studies, I like how you're not like rude.

  17. texaschic101
    • one year ago
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    rude won't get you anywhere.

  18. freemap
    • one year ago
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    I'm not going to take your day, so you have a wonderful rest of your day, hopefully I won't be on here again, I know you have other things.

  19. texaschic101
    • one year ago
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    and just think...before long, you will be helping others with problems such as these :) Have a good day and stay out of trouble...lol

  20. freemap
    • one year ago
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    lol I don't have a problem with trouble, Its easy for me to stay in line

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