Asked by robert
hyperbola with vertices at (0,+/-2), and asymptotes y=+- 1/2x
Answers
Answered by
Steve
since the vertices are on the y-axis, we will have
y^2/a^2 - x^2/b^2 = 1
the slope of the asymptotes is b/a, so
y^2 - x^2/4 = 1
but that has vertices at (0,+/-1) so
y^2/4 - x^2/16 = 1
To verify, see
http://www.wolframalpha.com/input/?i=hyperbola+y%5E2%2F4+-+x%5E2%2F16+%3D+1
y^2/a^2 - x^2/b^2 = 1
the slope of the asymptotes is b/a, so
y^2 - x^2/4 = 1
but that has vertices at (0,+/-1) so
y^2/4 - x^2/16 = 1
To verify, see
http://www.wolframalpha.com/input/?i=hyperbola+y%5E2%2F4+-+x%5E2%2F16+%3D+1
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