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A line is perpendicular to y = - {x + 7and intersects the point (4,2).What is the equation of thisperpendicular line?y = 3x + [?]

User Adam Liss
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1 Answer

12 votes
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The equation of the perpendicular line is given as


y=3x+\text{?}

It goes through the point (4, 2). Lets substitute and find the equation.


\begin{gathered} y=3x+\text{?} \\ 2=3(4)+\text{?} \\ 2=12+\text{?} \\ So,\text{ ?=-10} \\ \\ \text{Equation of Line} \\ y=3x-10 \end{gathered}

Answery = 3x - 10
User FongYu
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