Find the distance of the point (–1, –5, –10) from the point of intersection of the line
and the plane
.
Given -
The equation of line is
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and the equation of the plane is
![]()
To find the intersection of line and plane, putting value of
from equation of line into equation of plane, we get -
⇒ ![]()
⇒ ![]()
⇒ (2 + 3λ) × 1 + (-1 + 4λ) × (-1) + (2 + 2λ) × 1 = 5
⇒ 2 + 3λ + 1 - 4λ + 2 + 2λ = 5
⇒ λ = 0
So, the equation of line is
![]()
Let the point of intersection be (x,y,z)
So, ![]()
∴ ![]()
Hence, x = 2, y = -1, z = 2
Therefore, the point of intersection is (2, -1, 2).
Now, the distance between points (x1, y1, z1) and (x2, y2, z2) is given by -
units
Distance between the points A(2, -1, 2) and B(-1, -5, -10) is given by -
![]()
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= 13 units