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refer to number one which of the two is a function​

Sagot :

Step-by-step explanation:

If the graph of a function f is known, it is easy to determine if the function is 1 -to- 1 . Use the Horizontal Line Test. If no horizontal line intersects the graph of the function f in more than one point, then the function is 1 -to- 1

Answer:

[tex] \sqrt[ {552}^{?} ]{?} [/tex]