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I wouldn't put your phone number on here. Just make a skype, that's safer
okay thanks , you think you can help me?
Im only in precalc.
do you someone else who can help me?
@ganeshie8 @phi, @SithsAndGiggles @Nnesha @amistre64 @Astrophysics @campbell_st @Hero @dumbcow @IMStuck @iambatman @jim_thompson5910 @misssunshinexxoxo @OOOPS @SolomonZelman @zepdrix All of these people have helped me on this website before. They are all good people
and @IrishBoy123 and @jdoe0001
and @zzr0ck3r , sorry I almost forgot about you :p
okay thank you
if you have a specific question, please post it.
Determine a scalar equation for the plane through the points M(1, 2, 3) and N(3 ,2, -1) that is perpendicular to the plane with equation 3x + 2y + 6z + 1 = 0.
Determine a vector equation for the plane that is parallel to the xy -plane and passes through the point (4, 1, 3).
the equation of a plane is defined by its "normal vector" if we know the normal vector N, then N dot P = b would be the equation, where P=
represents any point on the plane
and b is a scalar.
for ** plane that is parallel to the xy -plane ** any idea what vector is normal to the xy plane ?
what direction is perpendicular to the xy plane?
i really don't know
yes, the z direction
there are lots of vectors that point straight up from (0,0,0) (i.e. depends on the length we make the vector) but if we want to point up 1 unit in the z-direction any idea how to write that vector?
@phi can you just solve this for me and i will see how you did it Determine a vector equation for the plane that is parallel to the xy -plane and passes through the point (4, 1, 3).
if we want to point up 1 unit in the z-direction any idea how to write that vector?