document.write( "Question 1123498: in the system below, I have only shown you the first equation. you fill in the second equation so that the systems will be...\r
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document.write( "A dependent: y=-3x+7\r
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document.write( "B:Inconsistent y=-3x+7\r
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document.write( "C: A one solution system y=-3x+7 \n" );
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Algebra.Com's Answer #739850 by Theo(13342)![]() ![]() You can put this solution on YOUR website! convert the equation into slope intercept form.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "if the slope is the same and the y-intercept is the same, then the equations form an identical line and have an infinite number of solutions.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "if the slope is the same and the y-intercept is different, then the equations form parallel lines and have no solutions.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "otherwise, the equations will form lines that intersect at one common point on a two dimensional graphing plane.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "since your equations are already in slope intercept form, then:\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "first equation is y = -3x + 7 and second equation is y = -3x + 7 leads to a common line which has an infinite number of solutions, i.e. all points on both lines are common to the other.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "in standard form, they may not look like they're identical. \n" ); document.write( "in fact, they will probably be multiples of each other.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "consider:\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "5x + 7y = 14 \n" ); document.write( "10x + 14y = 28\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "divide the second equation by 2 to get 5x + 7y = 14.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "first and second equation are the same, therefore will generate one common line where all points on the first line are common to all points on the second line.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "first equation is y = -3x + 7 and second equation is y = -3x + 14\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "slope is the same but y-intercept is different. \n" ); document.write( "these equations are are parallel and will have no solution.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "first equation is y = -3x + 7 \n" ); document.write( "second equation is y = 5x + 7\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "these equations are neither parallel or identical, therefore they will have one common point between both of them.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "the terminology is as follow:\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "the terminology from varsity tutors is as follows:\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "If a system has at least one solution, it is said to be consistent.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "If a consistent system has exactly one solution, it is independent.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "If a consistent system has an infinite number of solutions, it is dependent. \n" ); document.write( "When you graph the equations, both equations represent the same line.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "If a system has no solution, it is said to be inconsistent . The graphs of the lines do not intersect, so the graphs are parallel and there is no solution.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "under these definitions.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "y = -3x + 7 and y = -3x + 7 is consistent and dependent because it has an infinite number of solutions.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "y = -3x + 7 and y = -3x + 14 is inconsistent because it has no solutions.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "y = -3x + 7 and y = 5x + 7 is consistent and independent because it has one solution.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "the graphs of these equations are shown below:\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( " ![]() \n" ); document.write( " \n" ); document.write( "\n" ); document.write( " ![]() \n" ); document.write( " \n" ); document.write( "\n" ); document.write( " ![]() \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "here's a reference.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "https://www.varsitytutors.com/hotmath/hotmath_help/topics/consistent-and-dependent-systems\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "here's another reference.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "https://www.purplemath.com/modules/systlin1.htm \n" ); document.write( " \n" ); document.write( " |