Find the coordinates of the point on x-axis which is equidistant from the points ( - 2, 5 ) and ( 2, - 3 ).
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Answered by
11
Answer:
(-2 , 0)
Step-by-step explanation:
Let, Given points be A (-2 , 5) and B (2 , -3)
Let, Required poin be P (x , y)
Here, it is given point lies on "X axis" then Y co-ordinate must be 0.
Then,
ATQ, PA = PB
Using Distance Formula:- D = √(x₁ - x₂)² + (y₁ - y₂)²
=> √[x-(-2)]² + 5² = √(x-2)² + (-3)²
=> x² + 4 + 4x + 25 = x² + 4 -4x + 9
=> 8x = -16
=> x = -2
Thus, co-ordinate of P (-2,0)
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Amrit_____
Anonymous:
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Answered by
10
Hey there !!
Let the given points be A( -2 , 5 ) and B( 2 , -3 ) .
And, let the required point on x-axis be P( x , 0 ) .
Then,
→ PA = PB . [ A and B are equidistant from P ]
[ Squaring both side ]
=> PA² = PB² .
[ Using distance formula ]
=> [ x - ( -2 ) ]² + ( x - 5 )² = ( x - 2 )² + [ 0 - ( -3 ) ]² .
=> ( x + 2 )² + ( 0 - 5 )² = ( x - 2 )² + ( 0 + 3 )² .
=> ( x + 2 )² + 25 = ( x - 2 )² + 9 .
=> ( x + 2 )² - ( x - 2 )² = 9 - 25 .
=> [ ( x + 2 ) + ( x - 2 ) ] [ ( x + 2 ) - ( x - 2 ) ] = - 16 .
=> ( x + 2 + x - 2 ) ( x + 2 - x + 2 ) = - 16 .
=> ( 2x ) ( 4 ) = - 16 .
=> 8x = - 16 .
=> x = -16/8 .
•°• x = -2 .
✔✔ Hence, the required point on x-axis is ( -2 , 0 ) ✅✅ .
THANKS
#BeBrainly.
Let the given points be A( -2 , 5 ) and B( 2 , -3 ) .
And, let the required point on x-axis be P( x , 0 ) .
Then,
→ PA = PB . [ A and B are equidistant from P ]
[ Squaring both side ]
=> PA² = PB² .
[ Using distance formula ]
=> [ x - ( -2 ) ]² + ( x - 5 )² = ( x - 2 )² + [ 0 - ( -3 ) ]² .
=> ( x + 2 )² + ( 0 - 5 )² = ( x - 2 )² + ( 0 + 3 )² .
=> ( x + 2 )² + 25 = ( x - 2 )² + 9 .
=> ( x + 2 )² - ( x - 2 )² = 9 - 25 .
=> [ ( x + 2 ) + ( x - 2 ) ] [ ( x + 2 ) - ( x - 2 ) ] = - 16 .
=> ( x + 2 + x - 2 ) ( x + 2 - x + 2 ) = - 16 .
=> ( 2x ) ( 4 ) = - 16 .
=> 8x = - 16 .
=> x = -16/8 .
•°• x = -2 .
✔✔ Hence, the required point on x-axis is ( -2 , 0 ) ✅✅ .
THANKS
#BeBrainly.
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