document.write( "Question 876042: Write an equation for a parabola with its focus at (-1, 0) and its directrix at x = 1. Write your answer in vertex form with fractions when needed. \n" ); document.write( "

Algebra.Com's Answer #528542 by ewatrrr(24785) $\"\"$ $\"About$

You can put this solution on YOUR website!

 
\n" );
document.write( "Hi
\n" );
document.write( "Need to Know...............................................................
\n" );
document.write( "Standard Form of an Equation of a Circle is  
\n" );
document.write( "Standard Form of an Equation of an Ellipse is  
\n" );
document.write( "Standard Form of an Equation of an Hyperbola opening up and down is: 
\n" );
document.write( "Standard Form of an Equation of an Hyperbola opening right and  left is: 
\n" );
document.write( "the vertex form of a Parabola opening up(a>0) or down(a<0), 
\n" );
document.write( " the vertex form of a Parabola opening right(a>0) or left(a<0), 
\n" );
document.write( "focus at (-1, 0) and its directrix at x = 1 Opening Left along y =0
\n" );
document.write( "the vertex form of a Parabola opening left(a<0), 
\n" );
document.write( "  p = -1 (1 -1))/2  = 0 = h
\n" );
document.write( " a = 1/(4p) = 1/4(-1) = -1/4
\n" );
document.write( "\r
\n" );
document.write( "
\n" );
document.write( "
\n" );
document.write( "\n" );
document.write( " \n" );
document.write( "

\n" );