document.write( "Question 640730: Please help me solve this,I am having a terrible time understanding this concept paired with actually graphing it...Thanks in advance!\r
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document.write( "Graph the linear equation by solving for y first;
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document.write( "4x + 5y = -15 \n" );
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Algebra.Com's Answer #403431 by ankor@dixie-net.com(22740)![]() ![]() You can put this solution on YOUR website! Please help me solve this,I am having a terrible time understanding this \n" ); document.write( " concept paired with actually graphing it...Thanks in advance! \n" ); document.write( "Graph the linear equation by solving for y first; \n" ); document.write( "4x + 5y = -15 \n" ); document.write( "For graphing we want to put this into the slope/intercept form (y=mx+b) \n" ); document.write( "subtract 4x from both sides \n" ); document.write( "5y = -4x - 15 \n" ); document.write( "Divide both sides by 5 \n" ); document.write( "y = \n" ); document.write( ": \n" ); document.write( "Select at least two values for x and solve for y, results: \n" ); document.write( " x | y \n" ); document.write( "------- \n" ); document.write( "-5 | 1; (replace x with -5, -4(-1) - 3 = +4 - 3 = 1) \n" ); document.write( "+5 |-7; (replace x with +5, -4(+1) - 3 = -4 - 3 = -7) \n" ); document.write( "Graph these two points, should look like this \n" ); document.write( " \n" ); document.write( ": \n" ); document.write( "You can confirm this, replace x and y in the original equation x=-5, y=1 \n" ); document.write( "4x + 5y = -15 \n" ); document.write( "4(-5) + 5(1) = -15 \n" ); document.write( "-20 + 5 = \n" ); document.write( " |