document.write( "Question 611406: Please help me solve this equation: $\"+x%5E2%2By%5E2-4x-8y%2B16=0+\"$ \n" ); document.write( "

Algebra.Com's Answer #385018 by ewatrrr(24785) $\"\"$ $\"About$

You can put this solution on YOUR website!

 
\n" );
document.write( "Hi, 
\n" );
document.write( " OR 
\n" );
document.write( "See below for details on a Circle
\n" );
document.write( "See below descriptions of various conics                         
\n" );
document.write( "Standard Form of an Equation of a Circle is  
\n" );
document.write( "where Pt(h,k) is the center and r is the radius\r
\n" );
document.write( "\n" );
document.write( " Standard Form of an Equation of an Ellipse is  where Pt(h,k) is the center. (a positioned to correspond with major axis)
\n" );
document.write( " a and b  are the respective vertices distances from center and ąare the foci distances from center: a > b\r
\n" );
document.write( "\n" );
document.write( "Standard Form of an Equation of an Hyperbola opening right and  left is:
\n" );
document.write( "   where Pt(h,k) is a center  with vertices 'a' units right and left of center.\r
\n" );
document.write( "\n" );
document.write( "Standard Form of an Equation of an Hyperbola opening up and down is:
\n" );
document.write( "   where Pt(h,k) is a center  with vertices 'b' units up and down from center.\r
\n" );
document.write( "\n" );
document.write( "the vertex form of a parabola opening up or down,  where(h,k) is the vertex.
\n" );
document.write( "The standard form is , where  the focus is (h,k + p)\r
\n" );
document.write( "\n" );
document.write( "the vertex form of a parabola opening right or left,  where(h,k) is the vertex.
\n" );
document.write( "The standard form is , where  the focus is (h +p,k ) \n" );
document.write( "

\n" );