• Caught warning in the question code: A non-numeric value encountered on line 31 in Common Control
  • Caught warning in the question code: A non-numeric value encountered on line 39 in Common Control
  • Caught warning in the question code: A non-numeric value encountered on line 39 in Common Control
  • Caught warning in the question code: A non-numeric value encountered on line 39 in Common Control
Let the line PQ\displaystyle {P}{Q} pass through the points P=(8,2,4)\displaystyle {P}={\left({8},-{2},-{4}\right)} and Q=(5,6,3)\displaystyle {Q}={\left({5},-{6},-{3}\right)}.

The line will pass through the points X=(x,y,z)\displaystyle {X}={\left({x},{y},{z}\right)}, where x=\displaystyle {x}=, y=\displaystyle {y}=, z=\displaystyle {z}=. (Express x,y,z\displaystyle {x},{y},{z} as functions of a variable t\displaystyle {t})