The parametric equations for a line L1 are as follows:
x = −1+3t
y = −1+9t
z = −4−9t

Let L2 be the line parallel to L1 and passing through the point (1, 2, −5). Find the point P on L2 whose x-coordinate is 6.
P = P(6,
0
,
0
)

The correct answer is:

Question

The parametric equations for a line L1 are as follows:
x = −1+3t
y = −1+9t
z = −4−9t

Let L2 be the line parallel to L1 and passing through the point (1, 2, −5). Find the point P on L2 whose x-coordinate is 6.
P = P(6, 
0
, 
0
)

The correct answer is:

tkhunny · Answer

Parallel lines have the same direction numbers.