To determine if the relation represented by the semicircle is a function, we can apply the vertical line test. This test states that if any vertical line drawn on the graph intersects the graph at more than one point, then the relation is not a function.
In the case of a semicircle, there will be vertical lines that intersect the semicircle at two points in certain sections (for example, on the left and right halves of the semicircle). This indicates that for some x-values, there are multiple corresponding y-values, which means the relation fails the vertical line test.
Therefore, the correct response is:
No, the given relation is not a function.