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Which shows a function
Date Posted: 7 years ago
Views: 387
To have a function, there can only be one value of output to one value of input. However, two input values can have the same output.
For A, you see that there are 2 of the X values (-5) that has different Y values. Therefore it is not a function.
For B, you can see at the top that one input value has 2 output values. So it is also not a function.
For D, if you see on the horizontal line of x values, you have 2 Y values, top and bottom. This is also not a function.
If you look at the coordinates for C, there are some values of Y (right sidr of bracket) that are the same, but the x values (left side of bracket) are different. At the same time, there are no x values that are the same but have different Y values. This id therefore a function.
For A, you see that there are 2 of the X values (-5) that has different Y values. Therefore it is not a function.
For B, you can see at the top that one input value has 2 output values. So it is also not a function.
For D, if you see on the horizontal line of x values, you have 2 Y values, top and bottom. This is also not a function.
If you look at the coordinates for C, there are some values of Y (right sidr of bracket) that are the same, but the x values (left side of bracket) are different. At the same time, there are no x values that are the same but have different Y values. This id therefore a function.
Is this really a Pri one question ? Haha
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Date Posted:
7 years ago
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