document.write( "Question 256118: how do i solve this .5x-2y=4 and 4y-x=-8 by graphing them? \n" ); document.write( "
Algebra.Com's Answer #188313 by solver91311(24713)![]() ![]() You can put this solution on YOUR website! \r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Start with either one of the equations.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Step 1: Select a value for \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Step 2: Substitute the selected value for \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Step 3: Create an ordered pair \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Step 4: Plot the ordered pair from Step 3 on your coordinate plane.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Step 5: Repeat Steps 1 through 4 once more using a different value for \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Step 6: Draw a line through the two plotted points.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Go back and repeat all 6 steps for the other equation but use the same set of coordinate axes to graph the second equation.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Once you have graphed both lines, see where they intersect. That is, if they intersect. If you end up with two separate lines that do not intersect, then your solution set is the empty set. If you end up with two lines that do intersect in one point, your solution set is the ordered pair representing that point of intersection. If you end up with one line right on top of the other, then your solution set is the set of ordered pairs that satisfies either of the two equations. Such a set has in infinite number of elements.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "John \n" ); document.write( " \n" ); document.write( " \n" ); document.write( " |