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lara31 [8.8K]
4 years ago
5

Select the conic section that represents the equation. 2x2 + 3y2 = 18 circle ellipse parabola hyperbola

Mathematics
1 answer:
Evgen [1.6K]4 years ago
4 0

The conic that represents the equation 2x² + 3y² = 18 is ellipse

Step-by-step explanation:

The general equation for any conic section is

Ax² + Bxy + Cy² + Dx + Ey + F = 0, where A, B, C, D, E and F are

constants

1. If B² - 4AC < 0, if a conic exists, it will be either a circle or an ellipse,

   if A and C are equal then it is a circle, if not then it is an ellipse

2. If B² - 4AC = 0, if a conic exists, it will be a parabola

3. If B² - 4AC > 0, if a conic exists, it will be a hyperbola

∵ The equation is 2x² + 3y² = 18

- Subtract 18 from both sides

∴ 2x² + 3y² - 18 = 0

∴ A = 2 , B = 0 , C = 3 , D = 0 , E = 0 and F = -18

∵ B² - 4AC = (0)² - 4(2)(3) = -24

∵ -24 < 0

∴ B² - 4AC < 0

∴ The conic is ellipse or circle

∵ A ≠ C

∴ The conic is ellipse

The conic that represents the equation 2x² + 3y² = 18 is ellipse

Learn more:

You can learn more about discriminant in brainly.com/question/8196933

#LearnwithBrainly

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