document.write( "Question 466443: What's the equation of the given lines in standard form?? Help Been stuck for hours\r
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document.write( "). The line with m = 4 and intersecting 2x -4y = 8 at x = 6.\r
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document.write( "2.) The line through (2, -1) and parallel to x - 2y = 6.\r
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document.write( "3.) The line with m = 4 and the point (0, -9).\r
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document.write( "4.)The line with a slope of -1/3 and b of 6.\r
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document.write( "5.)The line including two points (6, 4) and (-5, 3). \n" );
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Algebra.Com's Answer #319783 by ccs2011(207)![]() ![]() You can put this solution on YOUR website! Standard form of equation of a line: \n" ); document.write( "Ax + By = C \n" ); document.write( "Slope-intercept form of equation of a line: \n" ); document.write( "y = mx + b \n" ); document.write( "Point slope form of equation of a line: \n" ); document.write( "(y - y1) = m(x - x1)\r \n" ); document.write( "\n" ); document.write( "1) ************************************************* \n" ); document.write( "m = 4 \n" ); document.write( "Now we need a point on the line, the point where the 2 lines intersect at x=6 \n" ); document.write( "To find y value, substitute in 6 for x and solve for y. \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "Subtract 12 on both sides \n" ); document.write( " \n" ); document.write( "Divide by -4 on both sides \n" ); document.write( " \n" ); document.write( "Thus the point is (6,1) \n" ); document.write( "We have slope and a point, use point-slope form: \n" ); document.write( " \n" ); document.write( "Distribute \n" ); document.write( " \n" ); document.write( "Subtract 4x on both sides \n" ); document.write( " \n" ); document.write( "Add 1 on both sides \n" ); document.write( " \n" ); document.write( "This is the equation of the line in standard form\r \n" ); document.write( "\n" ); document.write( "2)*********************************************************** \n" ); document.write( "Parallel lines have equal slopes \n" ); document.write( "Convert line x - 2y = 6 to slope-intercept form: \n" ); document.write( " \n" ); document.write( "Subtract x on both sides \n" ); document.write( " \n" ); document.write( "Divide by -2 on both sides \n" ); document.write( " \n" ); document.write( "From y=mx +b we see that \n" ); document.write( "Point on the line is (2,-1) \n" ); document.write( "We have slope and a point, use point-slope form: \n" ); document.write( " \n" ); document.write( "Distribute \n" ); document.write( " \n" ); document.write( "Subtract x/2 on both sides \n" ); document.write( " \n" ); document.write( "Subtract 1 on both sides \n" ); document.write( " \n" ); document.write( "Cannot have fractions in standard form \n" ); document.write( "Multiply equation by 2 to cancel denominators \n" ); document.write( " \n" ); document.write( "This is the equation of the line in standard form\r \n" ); document.write( "\n" ); document.write( "3)******************************************************* \n" ); document.write( "m = 4 \n" ); document.write( "point on the line is (0,-9) \n" ); document.write( "We have slope and a point, use point-slope form: \n" ); document.write( " \n" ); document.write( "Distribute \n" ); document.write( " \n" ); document.write( "Subtract 4x on both sides \n" ); document.write( " \n" ); document.write( "Subtract 9 on both sides \n" ); document.write( " \n" ); document.write( "This is the equation of the line in standard form\r \n" ); document.write( "\n" ); document.write( "4)********************************************************** \n" ); document.write( "slope = m = -1/3 \n" ); document.write( "y_intercept = b = 6 \n" ); document.write( "We have slope and y_intercept, use slope-intercept form: \n" ); document.write( "y=mx+b \n" ); document.write( " \n" ); document.write( "Add x/3 on both sides \n" ); document.write( " \n" ); document.write( "Cannot have fractions in standard form \n" ); document.write( "Multiply equation by 3 to cancel out denominator \n" ); document.write( " \n" ); document.write( "This is the equation of the line in standard form\r \n" ); document.write( "\n" ); document.write( "5) ********************************************************** \n" ); document.write( "Given 2 points (6,4) and (-5,3) \n" ); document.write( "Find slope using slope formula: \n" ); document.write( " \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "Division of 2 negative numbers equals a positive \n" ); document.write( " \n" ); document.write( "Pick one of our points, say (6,4) \n" ); document.write( "We have slope and a point, use point-slope form: \n" ); document.write( " \n" ); document.write( "Distribute \n" ); document.write( " \n" ); document.write( "Subtract x/11 on both sides \n" ); document.write( " \n" ); document.write( "Add 4 on both sides \n" ); document.write( "Notice we have to add fractions, find common denominator \n" ); document.write( "4 = 44/11 \n" ); document.write( "-6/11 + 44/11 = 38/11 \n" ); document.write( " \n" ); document.write( "Cannot have fractions in standard form \n" ); document.write( "Multiply equation by 11 to cancel out denominator \n" ); document.write( " \n" ); document.write( "This is the equation of the line in standard form\r \n" ); document.write( "\n" ); document.write( "****************************************************** \n" ); document.write( " \n" ); document.write( " |