Vertical Line Test Practice

A method to determine if a graph represents a function. If a vertical line intersects the graph at more than one point, it is not a function.

For every value of x, there is exactly one corresponding value of y.

The graph represents a function.

The graph does not represent a function.

Yes, it passes because for every x, there is one y.

No, it does not pass because a vertical line can intersect the graph at two points.

A set of ordered pairs, where each pair consists of an input (x) and an output (y).

Yes, if each input (x) has exactly one output (y).

A relation where each input is associated with exactly one output.

y = x + 1 is a function because each x value has one y value.