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Look at this set of ordered pairs:\newline(2,15)(2, 15)\newline(−4,15)(-4, 15)\newline(−4,16)(-4, 16)\newlineIs this relation a function?\newlineChoices:\newline(A) yes\newline(B) no

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Full solution

Q. Look at this set of ordered pairs:\newline(2,15)(2, 15)\newline(−4,15)(-4, 15)\newline(−4,16)(-4, 16)\newlineIs this relation a function?\newlineChoices:\newline(A) yes\newline(B) no
  1. Check xx-values: Check xx-values in the ordered pairs: (2,15)(2, 15), (–4,15)(–4, 15), (–4,16)(–4, 16).\newlinexx-values: 22, –4–4, –4–4.
  2. Identify repeating xx-value: Do xx-values repeat? Yes, –4–4 is repeated.
  3. Determine if relation is function: Since −4-4 is repeated with different yy-values (1515 and 1616), the relation is not a function.

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