A sliding test. The vertical line can meet the graph at at most one point.
Chat with our AI personalities
If the graph is a function, no line perpendicular to the X-axis can intersect the graph at more than one point.
base
take a vertical line, if another line intersects that vertical line at 2 points, then it is a function.In other words,a graph represents a function if each vertical line meets its graph in a unique point.
A derivative of a function represents that equation's slope at any given point on its graph.
No, a circle graph is never a function.