SOLUTION: Hi, I have to identify the conic of the equation below and find the center, vertices, and asymptotes: {{{x^2/9 + y^2/4 = 1}}} I can't find any examples like this so I'm lost

Algebra ->  Quadratic-relations-and-conic-sections -> SOLUTION: Hi, I have to identify the conic of the equation below and find the center, vertices, and asymptotes: {{{x^2/9 + y^2/4 = 1}}} I can't find any examples like this so I'm lost       Log On


   



Question 372311: Hi, I have to identify the conic of the equation below and find the center, vertices, and asymptotes:
x%5E2%2F9+%2B+y%5E2%2F4+=+1
I can't find any examples like this so I'm lost here. Any help you can provide is greatly appreciated :)

Found 2 solutions by robertb, solver91311:
Answer by robertb(5830) About Me  (Show Source):
You can put this solution on YOUR website!
It's an ellipse, with center at the origin (0,0), semi-major axis along the x-axis with length 3, and semi-minor axis 2. Vertices are (3,0) and (-3,0), and covertices (0,2) and (0,-2). There are no asymptotes of any kind (horizontal, vertical, slant, etc.)

Answer by solver91311(24713) About Me  (Show Source):
You can put this solution on YOUR website!





If you have a plus sign between the LHS terms, and...

If , you have a circle center at , radius , but if you have an ellipse, center at , semi-major axis and semi-minor axis (unless and it is the other way around).

If you have a minus sign, then you have a hyperbola, centered at

If only one of the variables is squared, then you have a parabola.

Only hyperbolas have asymptotes.

For your example, , , and . So you have an ellipse, centered at the origin, semi-major axis of 3, and semi-minor axis of 2. The vertices are at and , the end points of the semi-minor axis are at and . Calculate . Then the foci are at and . Ellipses do not have asymptotes.

John

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