A function assigns the value of each element of one set to the other specific element of another set. The correct option is A.
What is a Function?
A function assigns the value of each element of one set to the other specific element of another set.
In the given graph each specific value of x from the x-axis is representing a value on the y-axis. Therefore, as per the definition of the function, it can be concluded that the given graph is a function because each x-value has exactly one corresponding y-value.
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