document.write( "Question 696476: What is the solution set for the system of inequalities 3X2-4X-5 < Y and 4X+3Y< 2?\r
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document.write( "A. -1 < X < 2\r
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document.write( "B. -1 < X < 17/9\r
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document.write( "C. -0.79 < X < 2.12\r
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document.write( "D. -1 < X < 0.5\r
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Algebra.Com's Answer #480637 by SkinnyPrincess(1)![]() ![]() ![]() You can put this solution on YOUR website! This is a wrong answer. According to teacherstestprep.com , CSET Math practice test #9, the answer should be B) -1 < X < 17/9\r \n" ); document.write( "\n" ); document.write( "Whoever answered earlier had the 2nd equation mixed up 4X+3Y< 2 ==> when y = 0, x < 1/2 (NOT x > 1/2, not important) . And, the slope of 2nd equation should be negative, so the graph is wrong.\r \n" ); document.write( "\n" ); document.write( "in order to find the X values when Y values are same ==> combine 2 equations together 4x + 3(3X^2-4X-5) = 2 \n" ); document.write( "simplify to 9X^2 - 8x - 17 = 0 \n" ); document.write( "(x + 1)(9x - 17) = 0 \n" ); document.write( "x = -1 and 17/9 \n" ); document.write( " |