document.write( "Question 636643: determine whether the equation defines y as a function of x 6x^2+7y^2=1. Does the equation define y as a function of x? \n" ); document.write( "
Algebra.Com's Answer #401181 by lwsshak3(11628)\"\" \"About 
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determine whether the equation defines y as a function of x 6x^2+7y^2=1. Does the equation define y as a function of x
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\n" ); document.write( "If y is a function of x, for each x there is only one value of y.
\n" ); document.write( "Rewrite equation:
\n" ); document.write( "7y^2=1-6x^2
\n" ); document.write( "y^2=(1-6x^2)/7
\n" ); document.write( "y^2=[(1-6x^2)/7]
\n" ); document.write( "y=±√[(1-6x^2)/7]
\n" ); document.write( "By inspection you can see that for each x, you will have two different values of y
\n" ); document.write( "Therefore, y is not a function of x in this case.\r
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