Answer: Third graph is the correct choice.
Explanation:
Since we have given figures
We need to find the graph which is a function.
For being a function , it should satisfy the condition mentioned below :
If we draw a vertical line which intersect the graph more than once, then it is not considered to be function as there will be more than one values for x .
According to options , only third graph satisfy the condition when we draw a vertical line intersecting the graph.
There will be only one value of y for each x.
Hence, third graph is the correct choice.