Which set of ordered pairs does not represent a function?{(−4,−3),(−7,9),(7,−8),(−4,6)}{(−5,−4),(5,3),(−4,−7),(3,4)}{(−4,8),(0,8),(9,−3),(4,9)}{(2,−7),(−6,7),(−8,7),(−5,−5)}
Q. Which set of ordered pairs does not represent a function?{(−4,−3),(−7,9),(7,−8),(−4,6)}{(−5,−4),(5,3),(−4,−7),(3,4)}{(−4,8),(0,8),(9,−3),(4,9)}{(2,−7),(−6,7),(−8,7),(−5,−5)}
Define Function: A function is defined as a relation where each input ( extit{x}-value) has exactly one output ( extit{y}-value). To determine which set of ordered pairs does not represent a function, we need to check if there are any repeated extit{x}-values with different extit{y}-values in each set.
Check First Set: Let's examine the first set: {(−4,−3),(−7,9),(7,−8),(−4,6)}We can see that the x-value −4 appears twice with different y-values (−3 and 6). This violates the definition of a function, where each x-value must be associated with exactly one y-value.
Check Second Set: Now let's check the second set: {(−5,−4),(5,3),(−4,−7),(3,4)}In this set, all x-values are unique, so this set does represent a function.
Check Third Set: Next, we examine the third set: {(−4,8),(0,8),(9,−3),(4,9)} All x-values in this set are also unique, so this set represents a function.
Check Fourth Set: Finally, let's look at the fourth set: {(2,−7),(−6,7),(−8,7),(−5,−5)} All x-values in this set are unique as well, which means this set represents a function.
Identify Set Without Function: Since the first set is the only one with repeated x-values that have different y-values, it is the set that does not represent a function.
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