document.write( "Question 170094: Please help me, I don't understand!\r
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document.write( "Find the equation for each of the following items below:\r
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document.write( "a. A line that passes through (6,2) and has a slope of 2.\r
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document.write( "b. A line that passes though the points (2,4) and (8,16)\r
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document.write( "c. A line that passes through (7,3) and has a slope of -1.\r
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document.write( "d. A line that passes through (1, 1) and is perpendicular to the line 3x+4Y=12.\r
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document.write( "e. A circle with a radius of 9 and a midpoint at (3,3) \n" );
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Algebra.Com's Answer #125538 by stanbon(75887)![]() ![]() ![]() You can put this solution on YOUR website! Find the equation for each of the following items below: \n" ); document.write( "a. A line that passes through (6,2) and has a slope of 2. \n" ); document.write( "Line equation y = mx + b; find m and b. \n" ); document.write( "m = 2 \n" ); document.write( "b: 2 = 2*6 + b \n" ); document.write( "b = -10 \n" ); document.write( "Equation: y = 2x - 10 \n" ); document.write( "-------------------------------------- \n" ); document.write( "b. A line that passes though the points (2,4) and (8,16) \n" ); document.write( "Line equation y = mx + b; find m and b \n" ); document.write( "m = [16-4]/[8-2] = 2 \n" ); document.write( "b: 4 = 2*2 + b \n" ); document.write( "b = 0 \n" ); document.write( "Equation: y = 2x \n" ); document.write( "======================= \n" ); document.write( " \n" ); document.write( "c. A line that passes through (7,3) and has a slope of -1. \n" ); document.write( "same procudure as above \n" ); document.write( "----------------------------- \n" ); document.write( "d. A line that passes through (1, 1) and is perpendicular to the line 3x+4Y=12. \n" ); document.write( "Find slope of give line: 4y = -3x + 12; y = (-3/4)x + 3 \n" ); document.write( "Its slope is -3/4 so the perpendicular line has m = 4/3 \n" ); document.write( "b: 1= (4/3)*1 + b \n" ); document.write( "b = -1/3 \n" ); document.write( "Equation: y = (4/3)x - (1/3) \n" ); document.write( "----------------------------- \n" ); document.write( "e. A circle with a radius of 9 and a midpoint at (3,3) \n" ); document.write( "(x-3)^2 + (y-3)^2 = 9^2 \n" ); document.write( "================================ \n" ); document.write( "Cheers, \n" ); document.write( "Stan H. \n" ); document.write( " \n" ); document.write( " |