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(3,8) (-2,8)

 Dec 13, 2016
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write an equation of the line that passes through the points

(3,8) (-2,8)

 

\(m=\frac{y_2-y_1}{x_2-x_1}\)

 

\(m=\frac{8-8}{-2-3}=\frac{0}{-5}=0\)

 

\(m=0\)

 

\(y_1=mx_1-b\)

 

\(b=mx_1-y_1\)

 

\(b=0\times 3- 8\)

 

\(b=-8\)

 

\(y=mx+b\) 

 

\(y=0\times x-8\)

 

\(y=-8 \)    \(is \ the \ equation.\)

 

laugh  !

 

\(Simpler \ solution: y_1=y_2=-8\)

 

\(y=-8\)  \(is \ the \ equation.\)

 Dec 13, 2016
edited by asinus  Dec 13, 2016

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