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Write an equation of a line of slope intercept form represented line below

Write an equation of a line of slope intercept form represented line below-example-1
User Drenl
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1 Answer

5 votes

Solution

To write in slope-intercept form,

we use the formula


\begin{gathered} (y_-y_1)/(x-x_1)=(y_2-y_1)/(x_2-x_1) \\ \\ \end{gathered}
\begin{gathered} (x_1,y_1)=(-12,22) \\ \\ (x_2,y_2)=(-3,7) \end{gathered}
\begin{gathered} \Rightarrow(y-22)/(x+12)=(7-22)/(-3+12) \\ \\ \Rightarrow(y-22)/(x+12)=-(15)/(9) \\ \\ \Rightarrow(y-22)/(x+12)=-(5)/(3) \\ \\ \Rightarrow y-22=-(5)/(3)(x+12) \\ \\ \Rightarrow y-22=-(5)/(3)x-20 \\ \\ \Rightarrow y=-(5)/(3)x-20+22 \\ \\ \Rightarrow y=-(5)/(3)x+2 \end{gathered}

Correct option C

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