document.write( "Question 237624: what is a test value to determine whether or not a problem is a solution? \n" ); document.write( "
Algebra.Com's Answer #174741 by stanbon(75887) ![]() You can put this solution on YOUR website! what is a test value to determine whether or not a problem is a solution? \n" ); document.write( "------------- \n" ); document.write( "If you had the inequality x < -2 \n" ); document.write( "a test value could be ANY number. \n" ); document.write( "If you select x = 7 you would substitute that for x and see if you \n" ); document.write( "get a true statement. For example, \n" ); document.write( "7 < -2 \n" ); document.write( "That is not true so you would conclude that 7 is not in the solution \n" ); document.write( "set for the inequality. \n" ); document.write( "-- \n" ); document.write( "Further, since you might realize that 7 is greater than -2 you \n" ); document.write( "could conclude that ANY number greater than -2 is not in the \n" ); document.write( "solution set. \n" ); document.write( "---------------------- \n" ); document.write( "Bottom Line: The test number can be ANY number. You substitute it \n" ); document.write( "and see if it works. If it doesn't, it's not in the solution set. \n" ); document.write( "===================================== \n" ); document.write( "Cheers, \n" ); document.write( "Stan H. \n" ); document.write( " |