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01-11-2020
Mathematics

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To find an equation for the line with slope -3 that passes through the point ( 4, 3 ), Dana wrote the following steps. Is he correct? Explain

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ZJSG09112007 ZJSG09112007

01-11-2020

Answer:

y=-3x+15

Step-by-step explanation:

[tex]m=-3\\\\(4,3)=(x_1,y_1)\\\\[/tex]

Substitute values into point slope form

[tex]y-y_1=m(x-x_1)\\\\y -3=-3(x -4)\\\\y-3=-3x +12\\\\y=-3x+12+3\\\\y=-3x+15[/tex]

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