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Elina [12.6K]
2 years ago
14

Look at this table: Is this relation a function?

Mathematics
1 answer:
ivann1987 [24]2 years ago
3 0

Answer:

No.

Step-by-step explanation:

    To be a function, each input (x value) must go to exactly one output (y value). In this instance, the input 5 has an output of -15 and 4. This breaks the rule. Therefore, this relation is not a function.

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Answer:

|A_y|=\left|\begin{array}{cc}12&7\\ \\17&-51\end{array}\right|

Step-by-step explanation:

You can use these Cramer's formulas to solve for x and y:

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|A|=\left|\begin{array}{cc}12&-13\\ \\17&-22\end{array}\right|\\ \\ \\|A_x|=\left|\begin{array}{cc}7&-13\\ \\-51&-22\end{array}\right|\\ \\ \\|A_y|=\left|\begin{array}{cc}12&7\\ \\17&-51\end{array}\right|

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|A_y|=\left|\begin{array}{cc}12&7\\ \\17&-51\end{array}\right|

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Step-by-step explanation:

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