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In the following exercises, find the domain of the function and write the domain in interval notation.

g(x)=8-x

Short Answer

Expert verified

The required domain in interval notation is(-∞,8].

Step by step solution

01

Given information.

The function g(x)=8-x.

02

Find the domain.

Here, the given function gx=8-xhas a radical with index 2, which is even that means radicand must be greater than or equal to 0.

So,

8-x≥0x≤8

03

Write the domain in interval notation.

The domain obtained from step 2 is x≤8, that is all real numbers less than or equal to 8.

Therefore, domain in interval notation can be written as:(-∞,8]

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