Look at the graph of the given relation. Determine whether the relation is a function. Explain why or why not. (4.2, 6.2), (-0.8, 6.2), (-3.8, 4.2), (-3.8, -1.8)
The relation is a function when each input value has unique output values. In the above data (-3.8 has two different output values.) Hence it is a relation.
