document.write( "Question 650708: Here is the question that I have.\r
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document.write( "On the coordinate plane, graph the compound inequality:\r
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document.write( "y > 6 or y ≥ x - 4\r
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document.write( "I am completely lost on this. I did not know you could graph a compound inequality with more than one variable.
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Algebra.Com's Answer #407385 by Theo(13342)![]() ![]() You can put this solution on YOUR website! you graph the following equations: \n" ); document.write( "y = 6 \n" ); document.write( "y = x-4 \n" ); document.write( "this gets you the demarc lines. \n" ); document.write( "this gets into logic as well. \n" ); document.write( "your statement says you want to graph: \n" ); document.write( "y > 6 OR y >= x-4 \n" ); document.write( "this means that you can have the region on the graph that is above the \n" ); document.write( "line y = y OR you can have the region on the graph that is above or on \n" ); document.write( "the line y = x-4 OR you can have both at the same time. \n" ); document.write( "your statement could also have said you want to graph: \n" ); document.write( "y > 6 AND y >= x-4. \n" ); document.write( "this means that you can have the region on the graph that is above the \n" ); document.write( "line y = 6 AND you can have the region on the graph that is above or on \n" ); document.write( "the line y = x-4 at the same time. \n" ); document.write( "bottom line is that you CAN graph multiple equations in x and y on the \n" ); document.write( "same graph. \n" ); document.write( "you look for the region that satisfies ALL of the requirements of the \n" ); document.write( "problem. \n" ); document.write( "keep in mind that OR means either A OR B OR both. \n" ); document.write( "also keep in mind that AND means A AND B at the same time. \n" ); document.write( "With AND they MUST occur at the same time. \n" ); document.write( "With OR, they CAN occur at the same time but don't have to. \n" ); document.write( "graphs of your equations are shown below for visual clarification. \n" ); document.write( "THE FIRST GRAPH SHOWS THE LINES Y=6 AND Y=X-4. \n" ); document.write( "THERE IS NO REGION INVOLVED. \n" ); document.write( "JUST THE LINES THEMSELVES. \n" ); document.write( " ![]() \n" ); document.write( "THE SECOND GRAPH SHOWS THE REGION THAT SATISFIES THE EQUATION Y > 6 \n" ); document.write( "NOTE THAT THE LINE IS DASHED WHICH INDICATES THE REGION DOES NOT INCLUDE ANY POINTS ON THE LINE ITSELF. \n" ); document.write( " ![]() \n" ); document.write( "THE THIRD GRAPH SHOWS THE REGION THAT SATISFIES THE EQUATION Y >= X-4 \n" ); document.write( "NOTE THAT THE LINE IS SOLID WHICH INDICATES THE REGION INCLUDES ALL POINTS ON THE LINE ITSELF. \n" ); document.write( " ![]() \n" ); document.write( "THE FOURTH GRAPH SHOWS THE REGION THAT SATISFIES THE EQUATIONS OF Y > 6 OR Y >= X-4. \n" ); document.write( "NOTE THAT THIS REGION INCLUDES ALL THE REGION THAT SATISFIES THE EQUATION Y > 6 AND ALL THE REGION THAT SATISFIES THE EQUATION Y >= X-4. IT CAN SATISFY THE EQUATION Y > 6 WITHOUT SATISFYING THE EQUATION Y >= X-4, OR IT CAN SATISFY THE EQUATION Y >= X-4 WITHOUT SATISFYING THE EQUATION Y > 6, OR IT CAN SATISFY BOTH AT THE SAME TIME. \n" ); document.write( " ![]() \n" ); document.write( "THE FIFTH EQUATION SHOWS THE REGION THAT SATISFIES BOTH THE EQUATIONS Y > 6 AND THE EQUATION Y >= X-4 AT THE SAME TIME. \n" ); document.write( "IT HAS TO SATISFY BOTH AT THE SAME TIME. \n" ); document.write( "THIS CAN ONLY HAPPEN WHEN THE REGION IS ABOVE THE LINE Y > 6 AND ABOVE OR ON THE LINE Y >= X-4 AT THE SAME TIME. \n" ); document.write( " ![]() \n" ); document.write( " \n" ); document.write( " |