posted by J on .
1. a) Write the vector and parametric equations of the line through the points A(6, -1, 5) and B(-2, -3, 6).
b) Find another point on the line in (a).
This is what I got for a)
r = 6i-j+5k + t(-8i-2j+k)
x = 6-8t
y = -1-2t
z = 5+t
I need help with b)
a point on the line? Let t be any value, perhaps equal to say 1/2
I got 2 answers for a) but I'm not sure which one is correct, could you please help me determine which is correct?
the first answer I got is posted in this question, the second answer I got is this one for part a) could you please help me
for a) I got this instead:
[x, y, z] = [6, -1, 5] + t[-8, -2, 1]
and because I got this for part a), it also means my part b) changes too.. so i got this:
b) [x,y,z] = [6,-1,5] + t[-8,-2,1]
= [6,-1,5] + 1[-8,-2,1]
= [6,-1,5] + [-8,-2,1]
= 6-8, -1-2, 5+1
please let me know which one is correct.. thank you!