1.

The equation of the hyperbola with center at the origin, length of the transverse axis is 6 and one focus at (0, 4) is ?

A. \(\rm \frac {y^2} 9 + \frac {x^2} 7 = 1\)
B. \(\rm \frac {y^2} 9 - \frac {x^2} 7 = 1\)
C. \(\rm \frac {y^2} 9 + \frac {x^2} 9 = 1\)
D. \(\rm \frac {y^2} 7 + \frac {x^2} 9 = 1\)
Answer» C. \(\rm \frac {y^2} 9 + \frac {x^2} 9 = 1\)


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