Question

Find the point P where the line x = 1 + t, y = 2t, z = -3t intersects the plane x + y - z = 1.

Answer 1

just plug in the "values" for x, y and z into the plane's equation. then solve for t

Answer 2

whar values?

Answer 3

oh nevermind i get it, thanks

Answer 4

x=1+t
y=2t
z=-3t
then
\[ \large 1=x+y-z=(1+t)+(2t)-(-3t) \]