Thursday

April 24, 2014

April 24, 2014

Posted by **Jodine** on Monday, January 12, 2009 at 7:30pm.

I am supposed to convert this to standard form, but my answer doesn't make sense. One part was 9x^2/92...does that sound right?

- Math 30 Pure -
**Damon**, Monday, January 12, 2009 at 8:09pm16 y^2 + 64 y = - 9 x^2-28

y^2 + 4 y = (- 9 x^2-28 )/16

y^2 + 4 y + 4 = (- 9 x^2-28 )/16 +64/16

(y+2)^2 = (-9 x^2 + 36 )/16

(y+2)^2 + (9/16) x^2 = 36/16

16/36 (y+2)^2 + 9/36 x^2 = 1

x^2/2^2 + (y+2)^2/(3/2)^2 = 1

ellipse with center at (0,-2)

x half axis length 2

y half axis length = 1.5

- Math 30 Pure -
**Andrew**, Tuesday, April 28, 2009 at 6:11pmShouldn't it equal zero anyway because what does Y equal?

**Related Questions**

Math - 9x^2+16y^2-18x+64y-71=0 find the coordinates of the center, the foci, and...

Algebra - Totally confused-learned this today and I don't get it-Please help ...

Algebra-Please check work - I've reworked this and added on is any of it correct...

Algebra: factoring - I need to find the value of x. 9x^3 + 9x = 30x^2 It's ...

Algebra - What is the equation of the line that is perpendicular to y = 7/9x + ...

math - Find the x-intercept 3x-5y=14y+9x I think y=0 but 3x=9x does not make ...

math - Evaluate the following indefinite integral by using the given ...

Pre-Cal - Classify the conic and write the equation in standard form: (1) 9x^2...

Math- Algebra II - 9x^4/16y^6 How to I simplify it must be written in ...

Algebra - Solve the inequality and graph the solution. 9(x+2)>9(x-3) my work...