Question

Which is true regarding the graphed function f(x)?

Answer 1

F(5)=-1

Thats it.................

Answer 2

Answer: Second option.

Step-by-step explanation:

By definition, a relation is a function if for each input value (value of x) there is an unique output value (value of y).

1) For $f(0)=3$ the input value is $x=0$ and the output value is $y=3$, obtaining the point (0,3) which is not true for the function f(x) shown in the graph.

2) For $f(5)=-1$ the input value is $x=5$ and the output value is $y=-1$, obtaining the point (5,-1) which is true for the function f(x) shown in the graph.

3) For $f(3)=2$ the input value is $x=3$ and the output value is $y=2$, obtaining the point (3,2) which is not    true for the function f(x) shown in the graph.

4) For $f(2)=-2$ the input value is $x=2$ and the output value is $y=-2$, obtaining the point (2,-2) which is not true for the function f(x) shown in the graph.