document.write( "Question 502801: if you are given a parabola and the focal diameter is 12, how do you find what the focus is? \n" ); document.write( "

Algebra.Com's Answer #339057 by lwsshak3(11628) $\"\"$ $\"About$

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if you are given a parabola and the focal diameter is 12, how do you find what the focus is?
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\n" ); document.write( "Assuming standard form of equation: (x-h)^2=4p(y-k), (h,k) being the (x,y) coordinates of the vertex.
\n" ); document.write( "Focal diameter also known as the focal width=4p
\n" ); document.write( "The focus is p units from the vertex on the axis of symmetry on the inside of the parabola.
\n" ); document.write( "The directrix is also p units from the vertex on the axis of symmetry but on the outside of the parabola. \n" ); document.write( "

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