Answer to Question #125579 in Analytic Geometry for Fiyin

Question #125579

Find the parametric equation of the line that passes through the points (0,1,1) and (1,0,-1).


1
Expert's answer
2020-07-07T16:46:01-0400

Soiution:


{x=x1+(x2x1)×λx=y1+(y2y1)×λz=z1+(z2z1)×λ{x=0+(10)×λу=1+(01)×λz=1+(11)×λ{x=λу=1λz=12×λAnswer:          {x=λу=1λz=12×λ\begin{cases} x=x_1+(x_2-x_1)\times\lambda \\ x=y_1+(y_2-y_1)\times\lambda \\ z=z_1+(z_2-z_1)\times\lambda \\ \end{cases} \Rightarrow\\ \Rightarrow \begin{cases} x=0+(1-0)\times\lambda \\ у=1+(0-1)\times\lambda \\ z=1+(-1-1)\times\lambda \\ \end{cases} \Rightarrow \\ \Rightarrow \begin{cases} x=\lambda \\ у=1-\lambda \\ z=1-2\times\lambda \\ \end{cases} \\Answer: \\\;\;\;\;\; \begin{cases} x=\lambda \\ у=1-\lambda \\ z=1-2\times\lambda \\ \end{cases}



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