document.write( "Question 990271: What happens to the graph when you divide by \"x\" and why does this happen? \n" ); document.write( "
Algebra.Com's Answer #610302 by Theo(13342)![]() ![]() You can put this solution on YOUR website! when x is 0, the value of y is undefined. \n" ); document.write( "this creates a hole in the graph since there is no value of y that satisfies the equation when x is equal to 0. \n" ); document.write( "if the numerator is negative, then the value of y will decrease as x approaches 0. \n" ); document.write( "if the numerator is positive, then the value of y will increase as x approaches 0. \n" ); document.write( "here's two graphs that show you what i mean.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "first graph is y = -100 / x. \n" ); document.write( "look at the values of x = -10, x = 0, x = 10 \n" ); document.write( "when x = -10, the value on the graph is -100 / -10 which is equal to 10. \n" ); document.write( "when x = 0, the value on the graph is undefined. \n" ); document.write( "when x = 10, the value on the graph is -100 / 10 which is equal to -10\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "second graph is y = 100 / x \n" ); document.write( "look at the value of x = -10, x = 0, x = 10 \n" ); document.write( "when x = -10, the value on the graph is 100 / -10 which is equal to -10. \n" ); document.write( "when x = 0, the value on the graph is undefined. \n" ); document.write( "when x = 10, the value on the graph is 100 / 10 which is equal to 10.\r \n" ); document.write( "\n" ); document.write( "as the value of x gets closer to 0, the value of y gets larger and larger. \n" ); document.write( "in other words, it is approaching infinity, but never quite gets there.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " \n" ); document.write( " |