Lorraine writes the equation shown. x² + y - 15 = 0 she wants to describe the equation using the term relation and the term function. the equation represents, a relation and a function a relation but not function a function but not a relation neither a relation nor a function

A function is a relation. But a relation is not necessary to be a function. A relation becomes a function if every input just yields an unique output. In this case, we can rewrite the equation as follows.


This equation definitely reflect a relation. In addition, if we plug any x-value in for x, we only get one output for y. So this is also a function.

Thus, the right choice is A.