Question

1. IfA=(-3,4), B =[2.1). then find the co-ordinates of the point on AB produced such that AC=2BC.
2. If P is a point on the Y-axis whose ordinate is 5 units and Q is the point (-3.1). then find the length of
РО​

Answer 1

Step-by-step explanation:

ThepointAisonY−axis.∴itsabscissa=0.SoA=(x

1

,y

1

)=(0,5)

andB=(x

2

,y

2

)=(−3,1)[given]

∴AB=

(x

2

−x

1

)

2

+(y

2

−y

1

)

2

=

(−3−0)

2

+(1−5)

2

=

25

=5units.

AnsOptionB