Page 54 - E booklet prep 3 bader 2025 b_Neat

Example 1:

Calculate the coordinates of the midpoint C of ?¯¯?¯?¯? where :

1) A ( 2 , 4 ) , B ( 6 , 0 ) 2) A ( 7 , -6 ) , B ( -1 , 0 )

1- C =(?? + ?? , ??+ ?? ) = ( 4 , 2 )
?? ??

2- C =(?? +(-??) , -?? + ?? ) = ( 3 , -3 )
?? ??

Example 2:

If C ( 6 , -4 ) is the midpoint of ?¯¯?¯?¯? where A ( 5 , -3 ) then find the coordinates of a
point B

( 6 , -4 ) = =( ?? +?? , -?? + ?? )

?? ??

?? +?? = 6 -?? + ?? = -4
?? ??

X=7 y =-5 then B = ( 7 , -5 )

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