Function's Fun f(x^2−2016x)=f(x)⋅x+2016

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In summary, the domain of the function is all real numbers except for 2016, as it would result in division by zero. The function is not one-to-one and can result in the same output for different inputs. The range of the function is all real numbers and it is undefined at x = 2016. The function can be rewritten as f(x) = x^2-2016x.
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cooltu
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f(x^2*2016x) = f(x)x+2016
Then f(2017) = ?
 
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  • #2
Isn't "x^2*2016x" the same as "2016x^3"?
 
  • #4
Thanks, skeeter. That sounds more reasonable.

f(x^2- 2016x)= f(2017) if x^2- 2016x= 2017. That is the same as x^2- 2016x- 2017= (x+ 1)(x- 2017)= 0 so either x= -1 or x= 2017.

So either f(2017)= -1(f(-1))+ 2016 or f(2017)= 2017 f(2017)+ 2016.

For the latter, -2016= 2016 f(2017) so f(2017)= -1.
 

FAQ: Function's Fun f(x^2−2016x)=f(x)⋅x+2016

What is the domain and range of the function?

The domain of the function is all real numbers except for 2016, since the expression x^2-2016x cannot be equal to 0. The range of the function is also all real numbers except for 2016, since the output of the function cannot be equal to 2016.

How do you solve for x in this function?

To solve for x, we can use algebraic manipulation to isolate the x variable on one side of the equation. For example, we can subtract f(x) from both sides of the equation to get f(x^2-2016x) - f(x) = f(x)x + 2016 - f(x). Then, we can factor out the x variable and solve for it.

What is the significance of the number 2016 in the function?

The number 2016 is significant because it is included in both the input and output of the function. This means that the function has a fixed point at x=2016, where the input and output are equal. Additionally, the function is undefined at x=2016, as mentioned in the first question.

Can this function have multiple solutions?

Yes, this function can have multiple solutions. Since the function is defined for all real numbers except 2016, there can be infinitely many x values that satisfy the equation. However, there may be certain restrictions or conditions that limit the possible solutions.

How can this function be applied in real-world situations?

This function can be applied in various real-world situations, such as in finance, physics, and economics. For example, in finance, this function can be used to model the growth of investments or the depreciation of assets. In physics, this function can represent the trajectory of a projectile. In economics, this function can be used to analyze supply and demand curves.

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