Calculus III (help sketching graph)

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SUMMARY

The discussion focuses on sketching the curve represented by the vector equation r(t) = . Participants emphasize the need to identify the parametric equations x(t) = t, y(t) = 2-t, and z(t) = 2t to accurately plot the graph in three-dimensional space. Acknowledgment of the importance of multiple points for a reasonable graph is highlighted, with specific points like <1, -1, 2> and (0, 2, 0) mentioned. The conversation underscores the necessity of understanding the direction of the curve as 't' increases.

PREREQUISITES
  • Understanding of vector equations in three-dimensional space
  • Familiarity with parametric equations
  • Basic knowledge of graphing in xyz coordinates
  • Experience with sketching curves and surfaces in 3D
NEXT STEPS
  • Explore the concept of parametric equations in depth
  • Learn techniques for sketching curves in three-dimensional space
  • Study the implications of vector direction in parametric graphs
  • Practice graphing multiple points derived from vector equations
USEFUL FOR

Students studying Calculus III, educators teaching vector equations, and anyone interested in mastering the graphical representation of parametric equations in three-dimensional space.

Ric-Veda
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Homework Statement


Sketch the curve with the given vector equation. Indicate with an arrow the direction in with 't' increases

r(t)=<t, 2-t, 2t>

Homework Equations


parametric equation (can't type the equation, too confusing to use the template)

The Attempt at a Solution


So far, I have <1, -1, 2> and points (0, 2, 0). Am I even correct? And how do I sketch the graph. I know it's suppose to be in the xyz graph, but how do I graph the vector equation?
 
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Ric-Veda said:

Homework Statement


Sketch the curve with the given vector equation. Indicate with an arrow the direction in with 't' increases

r(t)=<t, 2-t, 2t>

Homework Equations


parametric equation (can't type the equation, too confusing to use the template)

The Attempt at a Solution


So far, I have <1, -1, 2> and points (0, 2, 0). Am I even correct? And how do I sketch the graph. I know it's suppose to be in the xyz graph, but how do I graph the vector equation?
What does the vector <1, -1, 2> represent?
The point (0, 2, 0) corresponds to t = 0, right? To get a reasonable graph you're going to need way more than 1 point.
For the parametric equations, what are x(t), y(t), and z(t)? All three are linear equations in t.

The graph of your vector function will be in three-dimensional space. Have you drawn any surfaces or curves in 3D?
 

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