autumnrickels28
autumnrickels28 autumnrickels28
  • 25-10-2020
  • Mathematics
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What is the domain of the radical function shown on the graph?

What is the domain of the radical function shown on the graph class=

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jimthompson5910 jimthompson5910
  • 25-10-2020

Answer: A) all real numbers

The domain is the set of all possible x inputs. The blue curve stretches on forever in both directions along the x axis. This means that we can plug in any x value we want, and get some y output. We don't have to worry about dividing by zero, or applying the square root of a negative number, so there are no restrictions on the domain. We can take the cube root of a negative number with no issues. For example, the cube root of -8 is -2.

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