Question

if the distance between point a(2,2)and b(-1,4) equal to 5 what is the value of x​

Answer 1

Answer:

We have,

P=(2,2),Q=(5,x) and PQ=5

We know that

d

2

=(x

2

−x

1

)

2

+(y

2

−y

1

)

2

Therefore,

PQ

2

=(5−2)

2

+(x−2)

2

5

2

=(3)

2

+(x−2)

2

25=9+(x−2)

2

(x−2)

2

=16

x−2=±4

x=6 or x=−2

Hence, this is the answer.