document.write( "Question 447165: Which is a point that lies on the graph of the equation: 2x-y=8?
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document.write( "A (3,-2)
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document.write( "B (-2, 6)
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document.write( "C (-3,-2)
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document.write( "D (-2,-6) \n" );
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Algebra.Com's Answer #307884 by Leaf W.(135)![]() ![]() You can put this solution on YOUR website! Knowing that a coordinate point follows the format (x,y), simply plug the values of x and y into the equation for each. If the equation is true, that is your answer. \n" ); document.write( "A. (3,-2) \n" ); document.write( "==> 2x - y = 8 \n" ); document.write( "==> 2(3) - (-2) = 8 \n" ); document.write( "==> 6 + 2 = 8 \n" ); document.write( "==> 8 = 8 \n" ); document.write( "This is true, so (3,-2) is a point on the equation 2x - y = 8, and your answer. \n" ); document.write( "B. (-2,6) \n" ); document.write( "==> 2x - y = 8 \n" ); document.write( "==> 2(-2) - 6 = 8 \n" ); document.write( "==> -4 - 6 = 8 \n" ); document.write( "==> -10 = 8 \n" ); document.write( "This is false, so (-2,6) is neither a point on the equation, nor your answer. \n" ); document.write( "C. (-3,-2) \n" ); document.write( "==> 2x - y = 8 \n" ); document.write( "==> 2(-3) - (-2) = 2 \n" ); document.write( "==> -6 + 2 = 2 \n" ); document.write( "==> -4 = 2 \n" ); document.write( "This is false, so (-3,-2) is neither a point on the equation, nor your answer. \n" ); document.write( "D. (-2,-6) \n" ); document.write( "==> 2x - y = 8 \n" ); document.write( "==> 2(-2) - (-6) = 8 \n" ); document.write( "==> -4 + 6 = 8 \n" ); document.write( "==> 2 = 8 \n" ); document.write( "This is false, so (-2,-6) is neither a point on the equation, nor your answer. \n" ); document.write( "***Therefore, the correct answer is A. (3,-2) \n" ); document.write( " |