Question

P Y=3x÷2-2 at the point of Q is (5,-3)find the midpoint of PQ

Answer 1

Answer:

Coordinate of point P by mid point formula,

We have mid point formula,

P(X,Y)=(

2

x

1

+x

2

,

2

y

1

+y

2

)

⇒(

2

−10−2

,

2

4+0

)=(−6,2)

let the ratio be m:n

Then,

m+n

mx

2

+nx

1

=−6

⇒

m+n

m(−4)+n(−9)

=−6

⇒−4m−9n=−6m−6n

⇒2m=3n

⇒

n

m

=

2

3

The raitio =m:n=3:2

Now, ⇒

m+n

my

2

+ny

1

=2

⇒

2+3

3y+2(−4)

=2⇒3y−8=10

⇒y=

3

18

=6

Step-by-step explanation:

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