## anonymous one year ago Write the equation of a hyperbola with vertices at (-7, 0) and (7, 0) and co-vertices (0, -4) and (0, 4).

1. anonymous

2. anonymous

@xapproachesinfinity

3. anonymous

@surjithayer

4. anonymous

@LynFran

5. anonymous

I think the first answer choice is correct because the vertices (major axis) are on the x-axis and the co-vertices (minor axis) are on the y-axis. And the major axis is always the one that's positive in hyperbolas; so 7^2=49 goes under x^2 and 4^2=16 goes under -y^2 x^2 _ y^2 --- --- 49 16

6. anonymous

Does that make any sense? Because I can explain it a little more.

7. anonymous

correct center Is (0,0) a=7 b=4 eq. of hyperbola is $\frac{ x^2 }{ a^2 }-\frac{ y^2 }{ b^2 }=1$