find relation between x and y such that the point (x ,y ) is equidistant from the points (3 , 6) and (-3,4)
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apply distance formula
√(y2-y1) whole square +(x2-x1)whole square under root are on whole formula
√(y2-y1) whole square +(x2-x1)whole square under root are on whole formula
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Assumption
P(x , y)
A( 3, 6)
B( -3 , 4)
Equidistant from P
AP = BP
Now,
Distance Formula = √(x2 - x1)² + (y2 - y1)²
√[(x - 3)² + (y - 6)²] = √[(x + 3)² + (y - 4)²]
Squaring both sides, we get
[(x - 3)² + (y - 6)²] = √[(x + 3)² + (y - 4)²]
Now,
Using Formula,
(a - b)² = a² + b² - 2ab
[x² + 3² - 2 × x × 3 + y² + 6² - 2 × x × 6] = [x² + 3² + 2 × x × 3 + y² + 4² - 2 × x × 4]
[x² + 9 - 6x + y² + 36 - 12y ] = [x² + 9 + 6x + y² + 16 - 8y]
[x² - 6x + y² + 45 - 12y] = [x² + 6x + y² + 25 - 8y]
x² - x² + y² - y² - 6x - 6x - 12y - 8y = 25 - 45
-12 x - 20y = - 20
-4(3x + 5y) = - 20
(3x + 5y) = - 20/4
(3x + 5y) = 5
(3x + 5y) - 5 = 0
Therefore ,
Relation between x and y :-
(3x + 5y) - 5 = 0
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