what is the approximate length and midpoint?

what is the approximate length and midpoint of PQ with endpoints p(-3,4) and Q(5, -8)?
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1 Answer

line tween points: (-4,4) & (5,-8)

midpoint: x...(5-4)/2=1/2

y...(4-8)/2==4/2=-2....midpoint=(0.5, -2)

length...deltax=5-(-4)=9

deltay=12

line leng=root(9*9 +12*12)=root(81+144)=root(225)=15
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