Question

six graphs are shown below. click on the tabs to see them.
graph 1 graph 2 graph 3 graph 4 graph 5 graph 6
check the box corresponding to each graph that represents a function.
graph 1 graph 2 graph 3 graph 4 graph 5 graph 6 none of the graphs

Explanation:

Step1: Recall Vertical Line Test

A graph represents a function if no vertical line intersects the graph more than once.

Step2: Analyze Graph 1

For Graph 1, draw vertical lines (mentally) at different x - values. Each x - value has at most one y - value. So it passes the vertical line test.

Step3: Analyze Graph 2 (assuming other graphs follow similar analysis, but since only Graph 1 is shown here with the given image, we focus on it. If more graphs were visible, we'd check each. But from the given, Graph 1 passes the vertical line test as each x has one y.

Answer:

Graph 1 (and other graphs that pass vertical line test, but from given, Graph 1 is a function so check its box)