Question

The coordinates of P and Q are (-4-7) and (6,3) respectively, X is the midpoint of PQ. Calculate the length of PQ

Answer 1

Step-by-step explanation:

Using the section formula, if a point (x,y) divides the line joining the

points (x 1,y 1 ) and (x 2 ,y 2 ) internally

in the ratio m:n, then (x,y)=(

m+n m x 2 +nx 1 , m+nmy 2 +ny 1 )

Substituting (x 1 ,y 1 )=(4,−3) and (x 2 ,y 2 )=(−1,7) and m=3,n=2 in the section formula, we get the abscissa of the point ( 3+23(−1)+2(4) )=1

Answer 2

Answer:

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