Find the vector equation of the line that passes through the point Q(2,0,-5) and
is perpendicular to both the vectors m=(0,1,4) and n=(-2,-1,3).
vector equation of a line: (x, y, z)=(x0,y0,z0) + t(a,b,c)
cartesian equation of a line: (x-x0)/a=(y-y0)/b=(z-z0)/c
The Attempt at a Solution
To find (a,b,c)I know I can get two equations because the dot product of (a,b,c) with the two perpendicular lines equals zero:
But two equations isn't enough to solve for three variables. Also, shouldn't the point (2,0,-5) also dot product with u or v to equal zero, since it's on the same line?
Is it correct to assume that the points (0,1,4) and (-2,-1,3) are also points on the line? In which case I can easily find the direction of the line by subtracting one from the other.