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10. Find the coordinates of B if A is the point (-1,4) and the midpoint of AB is M=(5,4).​

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Answer:

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Step-by-step explanation:

now in this SUM we have to use midpoint formula

so let A=(-1,4)=(x1,y1)

B=(x2,y2)=(To be found )

let midpoint M=(x,y)=(5,4)

so according to midpoint formula

x=x1+x2/2

and y=y1+y2/2

so solving and SUBSTITUTING given values in it we get

x2=11 and y2=4

hence coordinates of POINT B are (11,4)

such that its x coordinate and y coordinate are 11 and 4 respectively


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