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Write the equation of the line that goes through the point (2,8) and has a slope of -2.

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Having the slope, we can find the equation as following:


\begin{gathered} y-8=-2(x-2)=-2x+4 \\ y=-2x+4+8=-2x+12 \end{gathered}

so the equation is:


y=-2x+12

User Wachme
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