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Look at this set of ordered pairs:\newline(5,13)(5, 13)\newline(5,17)(5, -17)\newline(12,13)(12, 13)\newlineIs this relation a function?\newlineChoices:\newline(A) yes\newline(B) no

Full solution

Q. Look at this set of ordered pairs:\newline(5,13)(5, 13)\newline(5,17)(5, -17)\newline(12,13)(12, 13)\newlineIs this relation a function?\newlineChoices:\newline(A) yes\newline(B) no
  1. Identify xx-values: Look at the xx-values in the ordered pairs.\newlineOrdered pairs: (5,13)(5, 13), (5,17)(5, –17), (12,13)(12, 13)\newlinexx-values: 55, 55, 1212
  2. Check for repetition: Check if any xx-value is repeated.xx-values: 55, 55, 1212 The xx-value 55 is repeated.
  3. Determine if function: Determine if the relation is a function.\newlineA relation is a function if each xx-value is paired with exactly one yy-value.\newlineSince the xx-value 55 is paired with two different yy-values (1313 and 17–17), the relation is not a function.

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