Monday

September 22, 2014

September 22, 2014

Posted by **doug** on Sunday, May 18, 2008 at 12:28pm.

second equation:

y^2 -4y -12x= 8

Please help me this is do 2day bc i forget to turn it in to my teacher

- Math -
**Damon**, Sunday, May 18, 2008 at 3:52pm12 x + 8 = y^2 - 4 y

add 4 to both sides

12 x + 12 = y^2 - 4 y + 4

so

(y-2)^2 = 12 (x+1) = 4*3 (x+1)

opens right

vertex at (-1,2)

focus to vertex = 3 so focus at (2,2)

directrix to vertex = 3 so directrix at x = -4

**Answer this Question**

**Related Questions**

Math - determine vertex, focus and directrix of parabola. then graph the ...

Math - determine vertex, focus and directrix of parabola. then graph the ...

math - determine vertex, focus and directrix of parabola. then graph the ...

algebra - 6. Find the equation of each parabola described below. a) parabola ...

pre cal - What is the center of the conic whose equation is x^2 + 2y^2 - 6x + ...

Math/Algebra - Find the vertex, Focus,and Directrix of the parabola. Graph the ...

maths - Given that the equation of the parabola is 5y^2 + 24x = 0. Find (1)The ...

Pre Cal - write the equations of the parabola, the directrix, and the axis of ...

algebra - A few more question Id like for someone to check please. 1) what are ...

Algebra - Can someone tell me if I am right? I need to find the equation of a ...