Finding a point where a line in parametric form meets a plane

In summary, to find the point of intersection between a line in parametric form and a plane, the parametric equations of the line must be set equal to the equation of the plane. The necessary conditions for a line to intersect a plane are that it must lie in the plane or be parallel to it, and it must not be contained within the plane. A line can intersect a plane at more than one point if it lies within the plane or is parallel to it. To determine if a line and plane are parallel, the vector components of the line's direction must be proportional to the coefficients of the plane's equation, or the cross product of the direction vector and the normal vector of the plane must be equal to zero. A line and
  • #1
jcfor3ver
30
0

Homework Statement



Here is the problem:

x=y-1=2z

and the equation of the plane is 4x-y+3z=8





Homework Equations





The Attempt at a Solution



Ya so i got the normal line to be <1,1,-1/2> but i do not know where to go from here? help please?
 
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  • #2
hi jcfor3ver! :wink:

you want the point that lies on both lines?

then just solve the pair of simultaneous equations! :smile:
 

1. How do you find the point of intersection between a line in parametric form and a plane?

To find the point of intersection, we need to set the parametric equations of the line equal to the equation of the plane. This will give us a system of equations that we can solve for the values of the parameters, which will give us the coordinates of the point of intersection.

2. What are the necessary conditions for a line in parametric form to intersect a plane?

The necessary conditions for a line in parametric form to intersect a plane are that the line must lie in the plane or be parallel to it. In addition, the line must not be contained within the plane.

3. Can a line in parametric form intersect a plane at more than one point?

Yes, a line in parametric form can intersect a plane at more than one point. This can happen if the line lies within the plane or if the line is parallel to the plane and intersects it at multiple points along its direction.

4. How do you know if a line in parametric form and a plane are parallel?

If the vector components of the line's direction are proportional to the coefficients of the plane's equation, then the line and plane are parallel. Alternatively, if the cross product of the direction vector and the normal vector of the plane is equal to the zero vector, then the line and plane are parallel.

5. Can a line in parametric form and a plane be perpendicular?

Yes, a line in parametric form and a plane can be perpendicular. This occurs when the direction vector of the line is parallel to the normal vector of the plane. In this case, the dot product of the direction vector and the normal vector will equal zero, indicating a perpendicular relationship.

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