Question

When a graphed line is vertical it indicates that the relation:

1. is a function and begins with y =
2. is not a function and begins with x =
3. is a function and begins with x =
4. is not a function and begins with y =​

Answers

  1. Answer:
    y does not depend on x – it is not a function
    That leaves (2) or (4)
    Since one does not need y in the equation (4) is eliminated
    (2) is the only possible result
    For example:        x = 5

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