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If all the values of the "independent" variable (x) are different then it is a function.

If there are any repeats of the independent variable, the corresponding dependent variable, y, must be the same.

If all the values of the "independent" variable (x) are different then it is a function.

If there are any repeats of the independent variable, the corresponding dependent variable, y, must be the same.

If all the values of the "independent" variable (x) are different then it is a function.

If there are any repeats of the independent variable, the corresponding dependent variable, y, must be the same.

If all the values of the "independent" variable (x) are different then it is a function.

If there are any repeats of the independent variable, the corresponding dependent variable, y, must be the same.

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11y ago

If all the values of the "independent" variable (x) are different then it is a function.

If there are any repeats of the independent variable, the corresponding dependent variable, y, must be the same.

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Q: How can you tell if a table of values represents a function?
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I assume we are talking single-valued functions. If this is the case, any table with values for the function, you just have to look at the inputs to make sure two of them are not the same (in elementary algebra classes this is referred to as the "Vertical Line Test"). For example, say we have a table of numbers x and y: x | y ------ 10|15 12|15 This is a function because all the x values are different. Likewise we can say that were the table: x | y ------ 15|10 15|12 it would not be a function because we have multiple outputs originating from a single input.


How can you tell something is a function when you are given values of the function?

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How do you complete the tale of ordered pairs for the function y equals 5?

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