Algebra-1

To determine which graph does not represent a function, we need to analyze each option:

 

A. This graph represents a downward-opening parabola. It is a function because every vertical line intersects the graph at most once.

 

B. This graph represents a sideways parabola or possibly two branches. If it's two branches, it fails the vertical line test because some vertical lines could intersect the graph at two points (two y-values for a single x-value).

 

C. T...