# Hyperbola equation

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Find equation for hyperbola with center at (4,9); a=5; c=13; traverse axis parallel to the x axis

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##### Solution Summary

This shows how to find a hyperbola's equation given center and axis parallel to the x-axis.

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b^2 = c^2-a^2 = 13*13 - 5*5 = 144 where ^ means squared

then b = ...

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