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Name two points on the graph that show that this relation is NOT a
function

Name two points on the graph that show that this relation is NOT a function-example-1
User Don Brody
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The vertical line test shows if a graph isn't a function because a graph is a function if a straight vertical line can be drawn through it while only hitting one point.

Knowing this, we can deduct that the two points we need to name are (4,2) and (4,-2)

User Daniel Albuschat
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