1
answer
0
watching
61
views
24 Mar 2020
Discuss: Same Line; Different Parametric Equations; Every line can be described by infinitely many different sets of parametric equations, since any point on the line and any vector parallel to the line can be used to construct the equation. But how can we tell whether two sets of parametric equations represent the same line? Consider the following two sets of parametric equations;
![](data:image/png;base64,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)
![](data:image/png;base64,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)
Find two points that lies on line 1 by setting
and
in its parametric equations then show that these points also lies on Line
by finding two values of the parameter that give these points when substituted into the parametric equations for Line
.
Discuss: Same Line; Different Parametric Equations; Every line can be described by infinitely many different sets of parametric equations, since any point on the line and any vector parallel to the line can be used to construct the equation. But how can we tell whether two sets of parametric equations represent the same line? Consider the following two sets of parametric equations;
Find two points that lies on line 1 by setting and
in its parametric equations then show that these points also lies on Line
by finding two values of the parameter that give these points when substituted into the parametric equations for Line
.
Reid WolffLv2
21 May 2020