document.write( "Question 52346: The graph of the relation y-x^2 = 1/2x+y is stretched vertically by a factor of 4 and stretched horizontally by a factor of 7. Give the equation of the relation described by this new geaph \n" ); document.write( "
Algebra.Com's Answer #34946 by ChillyWiz(11)![]() ![]() ![]() You can put this solution on YOUR website! Think... when an equation is \"stretched\", what happens?\r \n" ); document.write( "\n" ); document.write( "To stretch a whole function by a factor of 4 vertically, f(x) -> 4*f(x) \n" ); document.write( "To stretch a whole function by a factor of 7 horizontally, f(x) -> f(x/7)\r \n" ); document.write( "\n" ); document.write( "But since this is an relation, lets solve for x instead of y \n" ); document.write( " \n" ); document.write( " \n" ); document.write( " \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "This is basically the graph of two vertical lines \n" ); document.write( "\n" ); document.write( "a vertical line stretched 4 times vertically will still be the same \n" ); document.write( "a vertical line stretched 7 times horizontally will still be the same\r \n" ); document.write( "\n" ); document.write( "The stretched relation will still be the same as the original equation.\r \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " |