Monday

March 2, 2015

March 2, 2015

Posted by **salome** on Sunday, March 11, 2012 at 8:37am.

5x^2+3y^2-15=0

find the centre and foci

- maths -
**Reiny**, Sunday, March 11, 2012 at 8:44amchange it to the standard form of an ellipse.

5x^2 + 3y^2 = 15

divide each term by 15

x^2 /3 + y^2 /5 = 1

centre is (0,0)

a = √3 , b=√5

c^2 + √3^2 = √5^2

c^2 + 3 = 5

c^2 = 2

c = ± √2

foci : (0,√2) and (0,-√2) , (on the y-axis)

**Answer this Question**

**Related Questions**

maths - Given the equation of an ellipse is 4x^2 + y^2 + 24x - 6y + 9 = 0 (i) ...

maths - Given that the ellipse x^2/a^2 + y^2/b^2 =1 has foci at(+/-ae,0)where e ...

maths - given equation of an ellipse as5x^2+3y^2-15=0.find center,foci,vertices ...

Algebra - 1. What is the equation an ellipse with foci at (0, ±2 √10 ) and...

maths - Given that the equation of the hyperbola is 9x(squared)-4y(squared)=36...

Calculus - find the equation for an ellipse that satisfies the following ...

Algebra 2 - Choose the equation that best represents an ellipse for the given ...

College Algebra - Find the vertices and foci of the ellipse with the given ...

AlgebraII - Choose the equation that best represents an ellipse for the given ...

algebra - Choose the equation that best represents an ellipse for the given foci...