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Which of the following is a parent function?A.๐‘“(๐‘ฅ)=โˆ’2๐‘ฅ+1f(x)=โˆ’2 x+1 B.๐‘“(๐‘ฅ)=๐‘’3๐‘ฅโˆ’2f(x)=e 3x โˆ’2C.๐‘“(๐‘ฅ)=4๐‘ฅf(x)=4 x D.๐‘“(๐‘ฅ)=4๐‘ฅ2f(x)=4x 2 SUBMITarrow_backPREVIOUS

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Solution

Understanding Parent Functions

A parent function is the simplest form of a function that still maintains the general characteristics of that function type. For polynomial functions, the simplest forms are often just the variable raised to a power multiplied by a constant.

Analyzing the Options

  1. A. f(x)=โˆ’2x+1 f(x) = -2x + 1
    This is a linear function, but the parent function for linear equations is typically f(x)=x f(x) = x .

  2. B. f(x)=e3xโˆ’2 f(x) = e^{3x} - 2
    This is an exponential function, but the simplest form is f(x)=ex f(x) = e^x .

  3. C. f(x)=4x f(x) = 4x
    This is a linear function as well, with the parent function being f(x)=x f(x) = x .

  4. D. f(x)=4x2 f(x) = 4x^2
    This is a quadratic function. The parent function for quadratic functions is f(x)=x2 f(x) = x^2 .

Final Verification and Conclusion

Among the choices, D 4x2 4x^2 is the only option that can be considered a transformation of the parent function f(x)=x2 f(x) = x^2 . The multiplier (4) does not change the fact that it is still fundamentally a parabolic function.

Final Answer

D. f(x)=4x2 f(x) = 4x^2 is a parent function.

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