Question

Which statement is NOT true?

F. A set of ordered pairs that describes a function cannot have any y-value repeated.

G. A table of values describes a function if all the x-values are different.

H. A mapping is a function if each x-value is paired with exactly one y-value.

J. A graph describes a function if no point on the graph lies directly above or below another of the graph.

Answer 1

The answer is F. A set of ordered pairs that describes a function cannot have any y-value repeated.

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Why??

F - it can be a function even if a y - value repeats itself its the x - values that cannot repeat in order to be a function.

G - this is true as stated above.

H - a mapping is a function if each x - value is paired with only one y - value. If an x - value was paired with multiple y - values then its the same thing as repeated x - values.

J - this is true. To check if a graph is a function try the vertical line test. Simply take a ruler holding it vertically ( up and down ) and place it over a point on the graph. If there is another point lined up with the first one ( above or below ), then it is NOT a function.

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I hope that helps you out!!

Any more questions, please feel free to ask me and I will gladly help you out!!

~Zoey