#How in Gods name do I do 6(d)?
paper edge
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paper edge
How in Gods name do I do 6(d)?
inner apex
do you know how to find an equation of a line passing through two points
paper edge
sort of but like do I just pick a random ass point?
like u have to pick 2 points on the plane
paper edge
literally just pick two random ass points
inner apex
the line we get on the plane
paper edge
wait so ca it be any point like <0,0,0>
inner apex
No it must be on the plane
hasty musk
just put z=0 you will get a equation of a line in that plane
inner apex
wait so ca it be any point like <0,0,0>
If (0,0,0) satisfies the equation of the plane then u can use that
paper edge
so I have to plug 0,0,0 into my plane and if it okay yea
i see now
so one moe question
so to clarify I am literally just plugging in 2 random ass points but rlly z = 0
inner apex
so to clarify I am literally just plugging in 2 random ass points but rlly z = 0
well this is usually a method you're generally taught before havving it used
paper edge
my teacher straight outta china and speaks little english so Im on my own fr
paper edge
I was just confused on whether therre was some strategy to get a line
so if i make z = 0 and then solve for x and y
inner apex
so if i make z = 0 and then solve for x and y
no need to solve 💀
u get an equation thats the line
hasty musk
the intersection gives a line thats it
inner apex
dont memorise it like that
inner apex
the intersection gives a line thats it
yeah
think of it like this
its the intersection of two planes
thus its a line
paper edge
interesting
paper edge
so as long as 1 variable is 0 i can form an intersection
so the key is to make an intersection
whats the key takeaway
hasty musk
so as long as 1 variable is 0 i can form an intersection
no the variable can be anyting unless there are domain restcritions
hasty musk
whats the key takeaway
the intersection of 2 planes give eqation of a line 👍
inner apex
so the key is to make an intersection
pretty much it, just take any other plane that is distinct from the original one, then find the intersection of the two planes. taking a plane like x=constant or y=constant or z=constant is preffered since theyre easier to solve but it can be any plane
paper edge
i se
see*
i get it now thanks guys yall are real ones.
Ima definitely have more questions in the future.
paper edge
cya thanks again