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Find the domain of the function using interval notation.

f(x)=\sqrt[3]{10-11x}

User MartW
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1 Answer

6 votes

Answer:


D_(f(x)) = (-\infty, \infty)

Explanation:

When we have a function in the following format:


f(x) = \sqrt[n]{g(x)}

And n is odd(3,5,...)

There are no impediments for the root,

So the domain of f(x) will be the domain of g(x)

In this problem, we have that:


f(x) = \sqrt[3]{10 - 11x}

So
g(x) = 10 - 11x

This is a subtraction of integers numbers, which has no impediment(denominator, for example).

So the domain are all the real numbers.

In interval notation


D_(f(x)) = (-\infty, \infty)

User Robin Ding
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