document.write( "Question 163085: can someone please help me with these two problems:\r
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document.write( "State whether the parabola opens upward or downward.\r
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document.write( "1. f(x) = 8(x-2)^2 - 4
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document.write( "2. f(X) = 1/2X^2 - 1 \n" );
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Algebra.Com's Answer #120239 by checkley77(12844)![]() ![]() ![]() You can put this solution on YOUR website! 1. f(x) = 8(x-2)^2 - 4 \n" ); document.write( "F(X)=8(X^2-4X+4)-4 \n" ); document.write( "F(X)=8X^2-32X+32-4 \n" ); document.write( "F(X)=8X^2-32X+28 (RED CURVE) \n" ); document.write( "2. f(X) = 1/2X^2 - 1 \n" ); document.write( "F(X)=X^2/2-1 (GREEN CURVE) \n" ); document.write( " \n" ); document.write( "BOTH CURVES OPEN UPWARD. \n" ); document.write( " |