Verified Answer :

the fourth one because to know if it is a function or not it has to pass the vertical line test the first one when you draw a vertical line some of the lines repeats so does the second and third but the last one when you draw a vertical line it doesn't repeat s that means its a function

Using the function concept, it is found that the fourth graph represents a function.

What is a function?

  • In a function, one value of the input can be related to only one value of the output.
  • In a graph, it means that for each value of x(horizontal axis), there can only be one respective value of y(vertical axis).

In this problem:

  • On the first graph, x = 1 is associated with multiple values of y, hence it is not a function.
  • On the second graph, each value of x > -2 is associated with two values of y, hence it is not a function.
  • On the third graph, each value of x < -2 is associated with two values of y, hence it is not a function.

Finally, on the fourth graph, each value of x has only one corresponding value of y, hence it is a function.

You can learn more about the function concept at https://brainly.com/question/12463448

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