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chrisplusian
 one year ago
If you are given a line in vector form, and a plane in cartesian form, what is the best way to find a point of intersection?
chrisplusian
 one year ago
If you are given a line in vector form, and a plane in cartesian form, what is the best way to find a point of intersection?

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chrisplusian
 one year ago
Best ResponseYou've already chosen the best response.0I am kind of tired and not thinking clearly, but a plane would have two parameters in vector form and a line only has one. Would you solve for the single parameter in the line and then use that parameter in the equation of the plane?

chrisplusian
 one year ago
Best ResponseYou've already chosen the best response.0I am honestly not sure where to start here

FibonacciChick666
 one year ago
Best ResponseYou've already chosen the best response.1Find the perpendicular line vector between the planes if I recall. (may not be correct, calc iii was a long time ago)

chrisplusian
 one year ago
Best ResponseYou've already chosen the best response.0This is actually form linear algebra, but I guess the concept is still the same

chrisplusian
 one year ago
Best ResponseYou've already chosen the best response.0But I still don't know what to do here, our professor told us on this one...."hint you have not learned cross product in my class yet so it is not needed for this problem".

FibonacciChick666
 one year ago
Best ResponseYou've already chosen the best response.1I think it had something to do with the gradient and unit vector. and linear algebra? Gosh, that was forever ago. I'm sorry I don't remember any more :( but @satellite73 could probably help

FibonacciChick666
 one year ago
Best ResponseYou've already chosen the best response.1I feel like there is something with changing the parameter first, then setting them equal.

chrisplusian
 one year ago
Best ResponseYou've already chosen the best response.0That is exactly what I need, thank you

FibonacciChick666
 one year ago
Best ResponseYou've already chosen the best response.1np, happy to help. I also found this and thought maybe it was the LA way, http://mathworld.wolfram.com/LinePlaneIntersection.html
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