What is the domain of the function f(x) = 2x + 5?

1 Answer
Jacobi J.
May 9, 2018

#x inRR#

Explanation:

We have a polynomial function here, which are defined for all real numbers, thus

#x in RR#

Think about it. We can plug in ridiculous values for #x# such as a trillion or negative one billion. We will still get a real-number answer.

Hope this helps!

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