To determine if the relation is a function using the vertical line test, we apply the following principle: if any vertical line intersects the graph of the relation in more than one point, then the relation is not a function.
Based on the points you've provided, (0, -3) and (3, 0), if we assume these points are part of a linear relationship (which seems likely given they form a straight line), a vertical line will only intersect the line at a single point for each x-value.
Since the relation appears to be linear and no vertical line can intersect the graph more than once (given these two points), we conclude that the vertical line test is satisfied.
Thus, the correct response is:
Yes, the given relation is a function.