The ratio in which yz-plane divides the line segment joining (−3,4,2),(2,1,3) is
−4:1
3:2
−2:3
1:4
A
1:4
B
−4:1
C
−2:3
D
3:2
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Solution
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Let the plane divide the line in the ratio p:1. A point that divides the line joining these 2 points in the ratio p:1 is given by (2p−3p+1,p+4p+1,3p+2p+1) Since, this point has to lie on the zy plane, so
2p−3=0 p=32
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