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The value of y , if distance between points A ( 2 , -2) and B (-1 , y ) is 5 |
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Answer» ong>Step-by-step explanation: Distance between A and B=5 →√(-1-2)²+(y+2)²=5 →√(-3)²+(y²+4+4y)=5 →√9+y²+4+4y=5 →9+y²+4+4y=25---------[squaring both SIDES] →y²+4y-12=0 →y²+6y-2y-12=0 →y(y+6)-2(y+6)=0 →(y-2)(y+6)=0 →y=2,y=-6 Here is UR solution... Hope so it will HELP you dear ☺️ |
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