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y = cuberoot(x) for real x is not a rational function.

Q: The function is not an example of a rational function?

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True

A polynomial function is simply a function that is made of one or more mononomials. For example 4x^2+3x-5 A rational function is when a polynomial function is divided by another polynomial function.

Yes. Rational functions must contain rational expressions in order to be rational.

A rational function is the quotient of two polynomial functions.

The domain of a rational function is the whole of the real numbers except those points where the denominator of the rational function, simplified if possible, is zero.

Related questions

True

A polynomial function is simply a function that is made of one or more mononomials. For example 4x^2+3x-5 A rational function is when a polynomial function is divided by another polynomial function.

Yes. Rational functions must contain rational expressions in order to be rational.

Yes. Rational functions must contain rational expressions in order to be rational.

Yes. Rational functions must contain rational expressions in order to be rational.

Yes. Rational functions must contain rational expressions in order to be rational.

True

a rational expression.

It is true that a rational function is a function whose equation contains a rational expression. This is used in various math classes.

True

A rational function is the quotient of two polynomial functions.

That's the definition of a "rational function". You simply divide a polynomial by another polynomial. The result is called a "rational function".