Algebra

HELP ALGEBRA HOMEWORK
1. Classify -6x^5+4x^3+3x^2+11 by its degree.
A) quinic
B) cubic
C) quartic
D) quadratic

2. Write -2x^2(-5x2+4x^3) in standard form.
A) -8x^5-20x^4
B) -8x^5+10x^4
C) -7x+2x^4
D) -7x^5-10x^4

3. Consider the leading term of the polynomial function. What is the end behavior of the graph?
2x^7-8x^6-3x^5-3
A) The leading term is 2x^7. Since N is odd and A is positive, the end behavior is up and up.
B) The leading term is 2x^7. Since N is odd and A is positive,the end behavior is down and down.
C) The leading term is 2x^7. Since N is odd and A is positive,the end behavior is down and up.
D) The leading term is 2x^7. Since N is odd and A is positive,the end behavior is up and down.

Thank you!

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  1. 1.
    x would be linear
    x^2 would be quadratic
    x^3 would be cubic
    x^4 would be quartic
    x^5 is quinic I suppose

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    Damon
  2. 2. well you know you need 10x^4 which kind of narrows it down

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    Damon
  3. 3.
    (big -)^7 = huge -
    like (-10)^7 = - 10^7
    and
    (big+)^7 = huge +
    like (+10)^7 = +10^7

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    Damon
  4. quintic
    But it's easier just to say degree 5,6,...

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    oobleck

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