document.write( "Question 539017: How do u do 9x(squared) + 4y(sqaured)=36? Its either a parabola, circle, ellipse, or hyperbola? \n" ); document.write( "

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How do u do 9x(squared) + 4y(sqaured)=36? Its either a parabola, circle, ellipse, or hyperbola?
\n" ); document.write( "9x^2+4y^2=36
\n" ); document.write( "divide by 36
\n" ); document.write( "x^2/4+y^2/9=1
\n" ); document.write( "This is an equation of an ellipse with vertical major axis of standard form:
\n" ); document.write( "(x-h)^2/b^2+(y-k)^2/a^2=1, a>b, (h,k) being the (x,y) coordinates of the center
\n" ); document.write( "For given equation:
\n" ); document.write( "Center: (0,0)
\n" ); document.write( "a^2=9
\n" ); document.write( "a=3
\n" ); document.write( "length of vertical major axis=2a=6
\n" ); document.write( "vertices: (0,0ąa)=(0,0ą3)=(0,3) and (0,-3) (end points of major axis)
\n" ); document.write( "..
\n" ); document.write( "b^2=4
\n" ); document.write( "b=2
\n" ); document.write( "length of minor axis=2b=4
\n" ); document.write( "..
\n" ); document.write( "Foci:
\n" ); document.write( "c^2=a^2-b^2=9-4=5
\n" ); document.write( "c=√5
\n" ); document.write( "Foci: (0,0ąc)=(0,0ą√5)=(0,√5) and (0,-√5) \n" ); document.write( "

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