Finding a possible degree and L.C. of a polynomial function?

kendang

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Jul 26, 2011
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Question:
The finite difference of a polynomial function, whose leading coefficient is a whole number, is 144. What can the possible degrees and leading coefficients of this function be? Justify your answer with appropriate calculations and a brief explanation.

From what I know:

  • A polynomial function is in the form of y=ax^n+b[/*:m:kotsojkk]
  • Finite difference are difference from the "y" values when x is subbed into "f(x"), which is given as: 144.[/*:m:kotsojkk]
  • The "a" value is a whole number.[/*:m:kotsojkk]


How can I find suitable degrees and leading coefficients when I do not know function?
 
Re: Finding a possible degree and L.C. of a polynomial funct

144*x

72*x^2

24*x^3

6*x^4

We still need a better defintion of "finite difference". It should be a rather general term and you are using it for a much more specific purpose. Very confusing.
 
Re: Finding a possible degree and L.C. of a polynomial funct

kendang said:
Question:
The finite difference of a polynomial function, whose leading coefficient is a whole number, is 144. What can the possible degrees and leading coefficients of this function be? Justify your answer with appropriate calculations and a brief explanation.

From what I know:

  • A polynomial function is in the form of y=ax^n+b No A polynomial of degree n has the general form a[sub:3qi3pwpj]1[/sub:3qi3pwpj]x[sup:3qi3pwpj]n[/sup:3qi3pwpj] + a[sub:3qi3pwpj]2[/sub:3qi3pwpj]x[sup:3qi3pwpj]n-1[/sup:3qi3pwpj] + ... a[sub:3qi3pwpj]n[/sub:3qi3pwpj]x[sup:3qi3pwpj]1[/sup:3qi3pwpj] + a[sub:3qi3pwpj]n+1[/sub:3qi3pwpj]x[sup:3qi3pwpj]0[/sup:3qi3pwpj] [/*:m:3qi3pwpj]
  • Finite difference are difference from the "y" values when x is subbed into "f(x"), which is given as: 144. Generally a finite difference is defined with respect to two values of x such as f(x + a) - f(x + b). [/*:m:3qi3pwpj]
  • The "a" value is a whole number. In my notation a[sub:3qi3pwpj]1[/sub:3qi3pwpj] is a whole number[/*:m:3qi3pwpj]


How can I find suitable degrees and leading coefficients when I do not know function?
 
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