Question

Find the equation of the line passing through the points $A(3,2,-1)$ and $B(4,-1,3)$.

Answer 1

Dr’s of line $=(4-3,-1-2,3+1)$

$=(1,-3,4)$

Equation of line $=\frac{x-4}{1}=\frac{y+1}{-3}=\frac{z-3}{4}$