- #1
tnutty
- 326
- 1
Homework Statement
Find the parametric equation and symmetric equation for the line :
11) The line through (1,-1,1) and parallel to the line x + 2 = y/2 = z-3
Homework Equations
Parametric equation :
x = x0 - at
y = y0 - bt
z = z0 - ct
symmetric equations :
(x - xo) / a = (y - yo)/b = (z - zo) /c
The Attempt at a Solution
I just need to find a parallel vector to the line x + 2 = y/2 = z-3.
Then I could use that vector with the initial point to find the parametric equation and the
symmetric equation.
I am just not sure how to find the parallel vector. Looking at the book for answer,
I see that the parallel vector is <2,3,2>, but I can't figure out how to obtain that answer.