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Which is the corresponding equation of a hyperbola with vertices at (11, 0) and (-11, 0) and co-vertices (0, 22) and (0, -22).

Which is the corresponding equation of a hyperbola with vertices at (11, 0) and (-11, 0) and-example-1
User Messanjah
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1 Answer

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B)(x^2)/(121)-(y^2)/(484)=1

1) Considering that the vertices and co-vertices are: (11,0) and (-11,0) and (0,22) and (0,-22) we can visualize that this hyperbola has their arches passing through the x-axis.

2) We can then, write out the following to get the equation of the hyperbola:


\begin{gathered} (\left(x-h\right)^2)/(a^2)-(\left(y-k\right)^2)/(b^2)=1 \\ h=0,k=0 \\ a^2=\left(k+11\right)^2\Rightarrow a=11 \\ b^2=\left(k-22\right)^2\operatorname{\Rightarrow}b=22 \\ \\ ((x-h)^(2))/(a^(2))-((y-k)^(2))/(b^(2))=1 \\ \\ ((x-0)^2)/(11^2)-((y-0)^2)/(22^2)=1 \\ \\ (x^2)/(121)-(y^2)/(484)=1 \end{gathered}

Note that this is the vertex form. So we can tell the answer is:


(x^2)/(121)-(y^2)/(484)=1

User Lonewaft
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