Math, asked by sruthikajagadeesan20, 6 hours ago

hey guys! I hope you can help me with this question.: find a point on the y axis which is equidistant from the point A(5,6) and (3,-4).​

Answers

Answered by Anonymous
9

\huge \mathrm{ \pink{A} \purple{n} \blue{s} \color{navy}{w} \orange{e} \color{teal}{r \: \: :- }}

Let the point on y axis is P(0,y) which is equidistant from the points A(6,5) and B(-4,3). The distance between PA is equal to PB such that,

\begin{gathered}PA=PB\\\\\tt \sqrt{\bigg(0\ -\ 6\bigg)^2\ +\ \bigg(y\ -\ 5\bigg)^2}\ =\ \sqrt{\bigg(0\ +\ 4\bigg)^2\ +\ \bigg(y\ -\ 3\bigg)^2}\\\\\\\\\sqrt{\bigg(-6\bigg)^2\ +\ y^2\ -\ 10y\ +\ 25}\ =\ \sqrt{\bigg(4\bigg)^2\ +\ y^2\ -\ 6y\ +\ 9}\\\\\\\\\sqrt{\bigg[36\ +\ y^2\ -\ 10y\ +\ 25\bigg]}\ =\ \sqrt{\bigg[16\ +\ y^2\ -\ 6y\ +\ 9\bigg]}\end{gathered}

On squaring,

\begin{gathered}\tt 36\ +\ y^2\ -\ 10y\ +\ 25\ =\ 16\ +\ y^2\ -\ 6y\ +\ 9\\\\\\61\ -\ 10y\ =\ 25\ -\ 6y\\\\\\61\ -\ 25\ =\ -6y\ +\ 10y\\\\\\36\ =\ 4y\\\\\\y\ =\ 9\end{gathered}

So, the point P(0,9) is equidistant from the points A(6,5) and B(-4,3).

Answered by diwanamrmznu
24

Given:-

  • a point on the y axis equidistant from the point A(5,6) and (3,-4).

find:-

  • point on the y axis

★solution:-

  • we know that y axis x value o so cordinet on y axis (0,y)

let P=(0,y). and Q =(5,6) R=(3,-4)

  • and given that the point (5,6) and(3,-4) y axis which is equidistant from the

it means

  \implies PQ=PR

we know that two point PQ between distance formula

 \implies \pink{ PQ =   \sqrt{( x_{1} -  x_{2}) {}^{2} +  (y_{1} -  y_{2}) {}^{2}     } } \\

question according:-

 \implies \:  \sqrt{(0 - 5) {}^{2} + (y-6) {}^{2}  }   =  \sqrt{( 0-3) {}^{2}  + (y+4) {}^{2}  }  \\

squaring both sides

 \implies \: ( - 5) {}^{2} + 6 {}^{2}   + y {}^{2}  - 12y = ( - 3 ){}^{2}   +  {y}^{2}  + 4 {}^{2}  + 8y) \\  \\  \implies \: 25 + 36 + y {}^{2}  =9 +  12y  +  8y  +  y {}^{2}   + 16 \\  \\  \implies \cancel{y {}^{2}   - y {}^{2} }  + 25  +36  = 20y+25 \\  \\  \implies \: 20y  = 36 \\  \\  \implies \: y =   \cancel{\frac{36}{20} } \\  \\  \implies \: y = 1.3

(0,1.3) a point on the y axis which is equidistant from the point A(5,6) and (3,-4).

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I hope u help you

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