document.write( "Question 61664This question is from textbook
\n" ); document.write( ": I need help on this homeowrk question. Thank you!\r
\n" ); document.write( "\n" ); document.write( "FOr each of the following relations, sketch the graph of the relation and its inverse and write an eqation for the inverse.
\n" ); document.write( "y=x squared -2x-3 \r
\n" ); document.write( "\n" ); document.write( "I can graph it using my calculator but i cant seem to figure out the inverse equation \n" ); document.write( "
Algebra.Com's Answer #42508 by stanbon(75887)\"\" \"About 
You can put this solution on YOUR website!
y=x^2-2x-3
\n" ); document.write( "Interchange x and y to get:
\n" ); document.write( "y^2-2y=x+3
\n" ); document.write( "Complete the square to get:
\n" ); document.write( "y^2-2y+1=x+4
\n" ); document.write( "(y-1)^2=x+4
\n" ); document.write( "y-1=sqrt(x+4) or y-1=-sqrt(x+4)
\n" ); document.write( "y=1+sqrt(x+4) or y=1-sqrt(x+4)
\n" ); document.write( "This is the inverse. It is expressed as
\n" ); document.write( "two functions because for each x-value
\n" ); document.write( "greater than or equal to -4 there are two
\n" ); document.write( "y values.
\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H.\r
\n" ); document.write( "\n" ); document.write( " \n" ); document.write( "
\n" );