Question

Please help! :) I feel like I should know these. ugh Brain is fried.

In three-dimensional space....

- What are the parametric equations for the line through the points (2, -1, 3) and (-1, 4, 0)?

- What is the equation of the set of points that are 12 units from the point (1, 5, -4)?

Answer 1

let A(2,-1,3) and B(-1,4,0) find AB to find a vector.

Answer 2

then we can use any point for our parametric equations.

Answer 3

so wat did u get?

Answer 4

x=-3t+2
y=5t-1
z=-3t+3
using co-ordinates of A

Answer 5

where t is any real number

Answer 6

then next question involves a simple sketch.