## Related questions with answers

Question

**Classify the graph of the equation as a circle, a parabola, an ellipse, or a hyperbola.**

$9x^2+4y^2-90x+8y+228=0$

Solution

VerifiedAnswered 2 years ago

Answered 2 years ago

Step 1

1 of 3Given:

$9x^2+4y^2-90x+8y+228=0$

We need to determine whether the given equation corresponds to a circle, parabola, ellipse, or hyperbola.

- If either the $x$-variable or the $y$-variable isn't squared, then the equation belongs to a
*parabola*. - If either $x^2$ or $y^2$ (but not both) contains a minus sign in front, then the equation belongs to a
*hyperbola*. - If the coefficients of $x^2$ and $y^2$ have the same sign but different values for the coefficients, then the equation belongs to an
*ellipse*. - If the coefficients of $x^2$ and $y^2$ have the same coefficients, then the equation belongs to a
*circle*.

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