Respuesta :

Answer:

For a function determining if it is a function or not is if they have two of the same x values it’s not a function if they don’t it is a function

Step-by-step explanation:

Answer:

For f(3), the input is 3 and you are looking for the output.  

To determine the function's value when x = 3, go to the value of 3 on the x-axis and then locate a point on the graph for that value of x.

Determine the value of y from the y-axis at that location on the graph.

Step-by-step explanation:

das all you need