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Find an equation of the set of all points equidistant from the points A(-3, 4, 3) and B(4, 1, -2).

Describe the set.
a line perpendicular to AB
a sphere with diameter AB
a plane perpendicular to AB
a cube with diagonal AB

User Nyle
by
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1 Answer

4 votes

Answer:

The normal vector of the plane is the vector pointing from the midpoint to A.

The equation of the plane is

(-3.5)(x)+(1.5)(y)+(2.5)(z) -(-3.5)(0.5) -(1.5)(2.5) -(2.5)(0.5) = 0

Step-by-step explanation:

The set of all points equidistant from A(-3, 4, 3) and B(4, 1, -2) is a plane. The equation of this plane can be found using the midpoint of the line segment connecting A and B and the vector pointing from the midpoint to A (or B), which is perpendicular to the plane.

The midpoint of the line segment connecting A and B is given by:

((-3 + 4)/2, (4 + 1)/2, (3 + -2)/2) = (0.5, 2.5, 0.5)

The vector pointing from the midpoint to A is given by:

(-3 - 0.5, 4 - 2.5, 3 - 0.5) = (-3.5, 1.5, 2.5)

The normal vector of the plane is the vector pointing from the midpoint to A.

The equation of the plane is

(-3.5)(x)+(1.5)(y)+(2.5)(z) -(-3.5)(0.5) -(1.5)(2.5) -(2.5)(0.5) = 0

The set of all points equidistant from A and B is a plane perpendicular to the vector AB, with the equation above.

User Dan Powley
by
7.7k points