document.write( "Question 954419: The graph of y = (x^4 + 4x^3 - x)^(1/4) contains which point?\r
\n" );
document.write( "\n" );
document.write( "A.(4,2)
\n" );
document.write( "B.(-2,0)
\n" );
document.write( "C.(-4,SQRT(2))
\n" );
document.write( "D.(2, 2(1/4) )
\n" );
document.write( "E.(2,0)
\n" );
document.write( "F.(3,4) \r
\n" );
document.write( "\n" );
document.write( "Please explain, I do not get this at all. Thanks in advance! \n" );
document.write( "
Algebra.Com's Answer #582891 by rothauserc(4718) You can put this solution on YOUR website! Below is the graph of y = (x^4 + 4x^3 - x)^(1/4) \n" ); document.write( " \n" ); document.write( "note that x axis is -10 to 10 \n" ); document.write( "from the graph we can eliminate answers A, B, E \n" ); document.write( "for the others we substitute for x and y in the equation for each point \n" ); document.write( "************************** \n" ); document.write( "C. (-4,SQRT(2)) \n" ); document.write( "sqrt(2) ?= (-4^4 +4*-4^3 -(-4))^(1/4) = 1.414213562 \n" ); document.write( "answer C. satisfies the equation \n" ); document.write( "*************************** \n" ); document.write( "D. (2, 2(1/4) ) \n" ); document.write( "2(1/4) ?= (2^4 +4*2^3 -(2))^(1/4) = 2.604290687 \n" ); document.write( "eliminate answer D since 2(1/4) = 2.25 \n" ); document.write( "**************************** \n" ); document.write( "F, (3,4) \n" ); document.write( "4 ?= (3^4 +4*3^3 -(3))^(1/4) = 3.692990888 \n" ); document.write( "eliminate F since 4 does not equal 3.692990888 \n" ); document.write( "**************************** \n" ); document.write( "Answer is C.\r \n" ); document.write( " \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " |