the pointA(-1,2),B(x,y) andC=(4,5) are such that BA=BC.Find a linear relation between x and y
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Answered by
8
Hello friend,
BA=BC
√(-1-x)²+(2-y)²=√(4-x)²+(5-y)²
1+x²+2x+2+y²-4y=16+x²-8x+25+y²-10y
x²+2x-x²+8x=y²-10y-y²+4y+41-3
10x=38-6y
2(5x)=2(19-3y)
5x=19-3y
x=(19-3y)/5
hope it helps.
BA=BC
√(-1-x)²+(2-y)²=√(4-x)²+(5-y)²
1+x²+2x+2+y²-4y=16+x²-8x+25+y²-10y
x²+2x-x²+8x=y²-10y-y²+4y+41-3
10x=38-6y
2(5x)=2(19-3y)
5x=19-3y
x=(19-3y)/5
hope it helps.
harsha180901:
In the second step it's 1+x²+2x+2+y²-4y=16+x²-8x+25+y²-10y
in the second step it's1+x²+2x+"4"+y²-4y=16+x²-8x+25+y²-10y
Answered by
5
Here's the answer. Hope that helps.
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