document.write( "Question 86210This question is from textbook
\n" );
document.write( ": For the equation x - 2 square root x = 0 , perform the following:
\n" );
document.write( "a) Solve for all values of x that satisfies the equation.
\n" );
document.write( "Answer:
\n" );
document.write( "Show work \r
\n" );
document.write( "\n" );
document.write( "b) Graph the functions y = x and y = 2 square root X, on the same graph (by plotting points if necessary). Show the points of intersection of these two graphs.
\n" );
document.write( "Graph:
\n" );
document.write( "Thanks in advance for any help. I can't figure this one out at all.
\n" );
document.write( " \n" );
document.write( "
Algebra.Com's Answer #62364 by dolly(163)![]() ![]() ![]() You can put this solution on YOUR website! a) x-2sqrt(x) = 0\r \n" ); document.write( "\n" ); document.write( "==> sqrt(x) [sqrt(x) - 2] = 0 [taking sqrt(x) common]\r \n" ); document.write( "\n" ); document.write( "==> sqrt(x) = 0 or sqrt(x) - 2 = 0\r \n" ); document.write( "\n" ); document.write( "==> x = 0 or sqrt(x) = 2\r \n" ); document.write( "\n" ); document.write( "==> x = 0 or x = 4 (on squaring)\r \n" ); document.write( "\n" ); document.write( "So the solution is x = 0 or x = 4\r \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "b) The following graph shows the equations drawn on the same axes.\r \n" ); document.write( "\n" ); document.write( " \n" ); document.write( "\n" ); document.write( "The red line shows y = x and the green curve shows y = 2 sqrt(x)\r \n" ); document.write( "\n" ); document.write( "From the graph also we infer that the equations intersect at x = 0 and x = 4.\r \n" ); document.write( "\n" ); document.write( "Thus the points of intersection are (0,0) and (4,4) \n" ); document.write( " |