document.write( "Question 305759: please help me find a rectangular-cooridinate equation for the curve: x=4-t, y=t^2+1 \n" ); document.write( "
Algebra.Com's Answer #218879 by themathtutor2009(81)\"\" \"About 
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x=4-t ---> t=4-x\r
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\n" ); document.write( "\n" ); document.write( "y=t^2+1\r
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\n" ); document.write( "\n" ); document.write( "y=(4-x)^2+1\r
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\n" ); document.write( "\n" ); document.write( "y=-x^2-8x+16+1\r
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\n" ); document.write( "\n" ); document.write( "y=-x^2-8x+17\r
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\n" ); document.write( "\n" ); document.write( "Answer: y=-x^2-8x+17
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