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anonymous

  • 5 years ago

Which of the following shows the additive inverse property? A. 8 + 0 = 8 B. 8 + 1 = 9 C. 8 + (-1) = 7 D. 8 + (-8) = 0

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  1. phi
    • 5 years ago
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    the additive inverse, or opposite, of a number a is the number that, when added to a, yields zero.

  2. anonymous
    • 5 years ago
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    what \[\phi\] sais

  3. anonymous
    • 5 years ago
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    Ok how did you get that (:?

  4. phi
    • 5 years ago
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    First, do you know the answer ?

  5. anonymous
    • 5 years ago
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    well im guessing a? bc of what you said..Sol idk..What exactly IS additive inverse property?

  6. phi
    • 5 years ago
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    This explains it http://www.khanacademy.org/video/inverse-property-of-addition?playlist=Pre-algebra

  7. phi
    • 5 years ago
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    Additive inverse is just a fancy way to say a - a = 0 or given any number (call it a) there is another number (-a) that you can add to a a+ (-a) to get zero.

  8. anonymous
    • 5 years ago
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    so is it A? or not? i'm wanting to figure this out by knowing the answer and figuring out how you got it.

  9. phi
    • 5 years ago
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    which of the answers shows 2 numbers added together that give you zero?

  10. phi
    • 5 years ago
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    option A is an example of the "identify property of addition" See http://www.khanacademy.org/video/identity-property-of-0?playlist=Developmental+Math+2

  11. anonymous
    • 5 years ago
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    Well D does and that's pretty much it

  12. phi
    • 5 years ago
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    Yes, and notice that one of the numbers is 8 and the other is -8 so 8 and -8 are additive inverses. It is a definition, so you have to memorize it.

  13. phi
    • 5 years ago
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    Watch Khan's video's if this is confusing, it will help it all sink in.

  14. anonymous
    • 5 years ago
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    ok now..let's go to the next one and ill see if im right

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