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What is the domain of this function?\newline(9,2)(6,10)(3,9)(5,2)(9,–2)(6,–10)(–3,9)(5,2)\newlineChoices:\newline(A){3,5,6,9}(B){10,2,2,9}(C){2,5,6,9}(D){6,3,5,9}(A)\{–3,5,6,9\}\newline(B)\{–10,–2,2,9\}\newline(C)\{2,5,6,9\}\newline(D)\{–6,–3,5,9\}

Full solution

Q. What is the domain of this function?\newline(9,2)(6,10)(3,9)(5,2)(9,–2)(6,–10)(–3,9)(5,2)\newlineChoices:\newline(A){3,5,6,9}(B){10,2,2,9}(C){2,5,6,9}(D){6,3,5,9}(A)\{–3,5,6,9\}\newline(B)\{–10,–2,2,9\}\newline(C)\{2,5,6,9\}\newline(D)\{–6,–3,5,9\}
  1. Identify xx-values: Now we have the xx-values: 99, 66, 3-3, 55. Let's put them in a set to show the domain.
  2. Create domain set: So the domain of the function is {9,6,3,5}\{9, 6, -3, 5\}. But wait, we gotta write them in increasing order, so it looks neater.
  3. Sort domain values: After sorting, the domain is \{\-3, 5, 6, 9\}. That's our answer, let's check it with the choices given.

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