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22 June, 21:04

How is a virtical line used

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Answers (2)
  1. 22 June, 21:08
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    To use the vertical line test, take a ruler or other straight edge and draw a line parallel to the y-axis for any chosen value of x. If the vertical line you drew intersects the graph more than once for any value of x then the graph is not the graph of a function.

    Explanation:

    in a nother way, it is up and down, so u can go up to down or down to up.
  2. 22 June, 21:28
    0
    Answer:The vertical line is used up and down
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