Algebra-1

Let's analyze each graph to determine which one represents a function:

A. This graph is a parabola curve. Parabolas pass the vertical line test because each vertical line intersects the curve at most once. Therefore, this graph represents a function.

 

B. This graph represents a circle centered at the origin with radius 7. Circles do not pass the vertical line test (except at the left and right points), so this graph does not represent a function.

 

C.&nbs...