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anonymous

  • one year ago

which of the following, if any, are polynomial functions?

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  1. anonymous
    • one year ago
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  2. anonymous
    • one year ago
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    yes second one is polynomial .

  3. anonymous
    • one year ago
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    not the first one because of the variable in the denominator

  4. anonymous
    • one year ago
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    you got that? no to the first yes to the second

  5. anonymous
    • one year ago
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    i dont think all polynomials are functions

  6. anonymous
    • one year ago
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    yes i understand that.. and just for educational purposes.. what makes something a polynomial function

  7. anonymous
    • one year ago
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    you have only positive integer exponents

  8. anonymous
    • one year ago
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    \[p(x)=a_nx^n+a_{n+1}x^{n-1}+...+a_1x+a_0\]

  9. anonymous
    • one year ago
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    yep satellite explained it

  10. anonymous
    • one year ago
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    alright and how would you determine the leading coefficient of a polynomial

  11. anonymous
    • one year ago
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    it is the coefficient of the term of highest degree (larges exponent)

  12. anonymous
    • one year ago
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    if the polynomial is written in standard form (from highest power to lowest) then it is the first coefficient you see

  13. anonymous
    • one year ago
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    \[f(x)=-4x^2+3x^2-5x+2\] leading coefficient is \(-4\) for example

  14. anonymous
    • one year ago
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    okay how about the polynomial: P(x)=3(x-1)(x+3)(2x-5)^2 would it be 3??

  15. anonymous
    • one year ago
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    no

  16. anonymous
    • one year ago
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    if you multiply out (in your head) you will get \(3\times4=12\)

  17. anonymous
    • one year ago
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    satellite the leading coefficient of -4 x^2 +3x^@-5x will be -1 ?

  18. anonymous
    • one year ago
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    or if you multiply out for real you get \[12 x^4-36 x^3-81 x^2+330 x-225\]but you don't need to do that to see the 12

  19. anonymous
    • one year ago
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    satellite reply my question i am asking u

  20. anonymous
    • one year ago
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    i don't understand it, look at what you wrote

  21. anonymous
    • one year ago
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    @chlobohoe do you see how i got the 12?

  22. anonymous
    • one year ago
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    yes i saw! cause you multiplied everything out. ima bout to post another question wait up<3

  23. anonymous
    • one year ago
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    will it be 1 ? http://prntscr.com/7dpfkw

  24. anonymous
    • one year ago
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    i mean -1

  25. anonymous
    • one year ago
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    lol i made a typo

  26. anonymous
    • one year ago
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    lol.its ok but u confused me :P

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