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Let the line p be the perpendicular bisector of A = (24, 7) and B = (-3, 4). Given that AB meets p at C = (x, y), what is 2x - 4y.

 Jan 27, 2021
 #1
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The midpoint of AB   will  be  C  = [ ( 24  -3)/2  , (7 + 4)  /2  ]  =  (21/2 , 11/2)  

 

So

 

2(21/2)   - 4(11/2)  =

 

21  - 22   = 

 

-1 

 

 

cool cool cool

 Jan 27, 2021

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