Use the vertical line test. If the line intercepts more than one point, it is not a function. Since there are two points where the value of 'x' is two, the line will pass both points. The graph is not a function.
ANSWER: Use the vertical line test .If the line intersepts more than one point ,it is not a function .Since there are two points where the value of 'x' is two the line will pass both points.Therefore the graph is not a function. HOPE IT HELPS!!!!!
