Answer :

The domain of a function is defined as the set of input values a function can take.

In the case of our function, the domain is all the values contained in the ellipse on the left.

These values are

[tex]\left\lbrace -2,3,4,2\right\rbrace [/tex]

which is our domain. The answer we got matches choice B; therefore, choice B is the correct answer.

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