document.write( "Question 639747: Complete the table, write the results as ordered pair.
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document.write( "5x-4y=20\r
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document.write( "The first ordered pair where x=0 is
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document.write( "The second ordered pair where y=0 is
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document.write( "The third ordered pair where y=-10 is?\r
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document.write( "x | y
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document.write( "____\r
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document.write( "0 |
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document.write( " | 0
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document.write( " | -10\r
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document.write( "Could someone kindly help? Not quite sure if im doing it right. I got (0,-5) for the first. \n" );
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Algebra.Com's Answer #402868 by DrBeeee(684) ![]() You can put this solution on YOUR website! Given \n" ); document.write( "(1) 5x - 4y = 20 \n" ); document.write( "To find the pair of coordinants that satisfy this equation substitute the given coordinate into the given equation and solve for the other. \n" ); document.write( "a) when x = 0, we have \n" ); document.write( "5*0 - 4y = 20 or \n" ); document.write( "-4y = 20 which yields \n" ); document.write( "y = -5 \n" ); document.write( "Now check your answer. \n" ); document.write( "Is (5*0 - 4*(-5) = 20)? \n" ); document.write( "Is (20 = 20)? Yes \n" ); document.write( "The solution pair is (0,-5) as you rightly found. \n" ); document.write( "b) when y = 0, we have \n" ); document.write( "5x - 4*0 = 20 or \n" ); document.write( "5x = 20 which yields \n" ); document.write( "x = 4 \n" ); document.write( "Now check your answer. \n" ); document.write( "Is (5*4 - 4*0 = 20)? \n" ); document.write( "Is (20 = 20)? Yes \n" ); document.write( "The solution pair is (4,0) \n" ); document.write( "c) When y = -10, we have \n" ); document.write( "5x -4(-10) = 20 or \n" ); document.write( "5x = 20 - 40 or \n" ); document.write( "5x = -20 which yields \n" ); document.write( "x = -4 \n" ); document.write( "Now check your answer. \n" ); document.write( "Is (5*(-4) -4(-10) = 20)? \n" ); document.write( "Is (-20 + 40 = 20)? \n" ); document.write( "Is (20 = 20)? Yes \n" ); document.write( "The solution pair is (-4,-10) \n" ); document.write( " |