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Sagot :
1) Yes, because each value of x maps onto only one value of y.
2) No, because the x-value of 1 maps onto 4 different y values.
Answer:
- yes, a function.
- no, not a function.
Step-by-step explanation:
You want to know if the given sets of ordered pairs represent a function.
Function
A function is a relation that maps an input value to a single output value. On a graph, this means no two points are vertically aligned. For a table or set of ordered pairs, it means no input (x) value is repeated.
1.
The input (x) values are {-1, 0, 1, 2} with no repeats. This relation is a function.
2.
The input values are {1, 1, 1, 1} with repeats. This relation is not a function.
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