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22 votes
The vertical test line

User Alan Viars
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2 Answers

21 votes
21 votes

Answer:

It is a graphical method

User Luis LL
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22 votes
22 votes

Explanation:

The vertical line test is a graphical method of determining whether a curve in the plane represents the graph of a function by visually examining the number of intersections of the curve with vertical lines. and, as a result, any vertical line in the plane can intersect the graph of a function at most once.

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User Smokku
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