document.write( "Question 204789: Write the equation of the line that contains the points (2, 2) and (-3, 12). \r
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document.write( "Here is part of the answer. Can you identify the missing part? \r
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document.write( "y = -2x + ___ \r
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Algebra.Com's Answer #154563 by ankor@dixie-net.com(22740) You can put this solution on YOUR website! Write the equation of the line that contains the points (2, 2) and (-3, 12). \n" ); document.write( "Here is part of the answer. Can you identify the missing part? \n" ); document.write( "y = -2x + ___ \n" ); document.write( "Let the missing part = b \n" ); document.write( "y = -2x + b \n" ); document.write( "Substitute for x and y using the 1st given coordinate (2, 2) \n" ); document.write( "2 = -2(2) + b \n" ); document.write( "2 = -4 + b \n" ); document.write( "2 + 4 = b \n" ); document.write( "b = 6 \n" ); document.write( ": \n" ); document.write( "the equation y = -2x + 6 \n" ); document.write( ": \n" ); document.write( "Check this using the 2nd coordinate (-3, 12) \n" ); document.write( "12 = -2(-3) + 6 \n" ); document.write( "12 = +6 + 6 \n" ); document.write( " |