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Question: The point which is equidistant from A(3, 4, -1) and B(1, -2, 5) on Y-axis is...

The point which is equidistant from A(3, 4, -1) and B(1, -2, 5) on Y-axis is

A

(0,1, 0)

B

(0,13,0)\left( 0 , \frac { 1 } { 3 } , 0 \right)

C

(0,13,0)\left( 0 , - \frac { 1 } { 3 } , 0 \right)

D

(0,53,0)\left( 0 , - \frac { 5 } { 3 } , 0 \right)

Answer

(0,13,0)\left( 0 , - \frac { 1 } { 3 } , 0 \right)

Explanation

Solution

The plane that perpendicularly bisects AB\overline { \mathrm { AB } }is

2(x2)+6(y1)6(z2)=02 ( x - 2 ) + 6 ( y - 1 ) - 6 ( z - 2 ) = 0(i.e.)

x+3y3z+1=0x + 3 y - 3 z + 1 = 0

This cuts **Y-**axis at (0,13,0)\left( 0 , - \frac { 1 } { 3 } , 0 \right)