Respuesta :

absor201

Answer:

Please check the explanation.

Step-by-step explanation:

The function [tex]f(x)=x[/tex] is called the identity function.

In other words, x GOES IN, X COMES OUT.

From all the graphs, the 3rd graph represents the identity function as the input and output of this graph remains the same.

The 3rd graph indicates that:

  • at x = 1, y = 1
  • at x = 2, y = 2
  • at x = -1, y = -1
  • at x = -2, y = -2

So, it is clear that input and output of this 3rd graph remains the same.

The solution graph is also attached below.

Ver imagen absor201

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