A relation is what it sounds like. A relation between numbers and/or objects.
A function is just a special type of relationship. In order for a relation to be a function, it must have only one output for one input.
On a graph, the x-axis is the input and the y-axis is the output. If you draw a vertical line through a point on the x-axis and there is only one point on that vertical line, then it is a function.
The only graph that meets these criteria is the first graph.
Answer:
four twelfths
Step-by-step explanation:
multiply by 2/2 to get 4/12
4 6/9= 38/9
7 5/3= 26/3
3 7/8= 31/8
5 19/14 =89/14