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08-11-2019
Mathematics

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For what values of a is the point M(−3a, 1+a) on the graph of y=−x+3?

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Аноним Аноним

11-11-2019

If the point lies on the graph of the equation

[tex]y=-x+3[/tex]

Then the y coordinate must be the opposite of the x coordinate, plus 3:

[tex]1+a = -(-3a)+3 \iff 1+a=3a+3 \iff 2a=-2 \iff a=-1[/tex]

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