document.write( "Question 760383: √(49-x^2).range,increasing, decreasing and zeros of the function. \n" ); document.write( "
Algebra.Com's Answer #462603 by DrBeeee(684)\"\" \"About 
You can put this solution on YOUR website!
Let y = \"sqrt%2849-x%5E2%29\", then after squaring both side we have
\n" ); document.write( "(1) \"y%5E2+=+49+-+x%5E2\" or
\n" ); document.write( "(2) \"x%5E2+%2B+y%5E2+=+7%5E2\" which is the equation for a circle centered at the origin (0,0) with a radius of 7.
\n" ); document.write( "The roots are at x = {-7,7}
\n" ); document.write( "The range is y = (-7,7)
\n" ); document.write( "Since it is a circle, I don't think the other attributes apply.
\n" ); document.write( "
\n" );