Math(preCalculus)
posted by K.C .
Find the standard form of the equation of the circle.
3(x+2)^2 + 3(y1)^2=18
so i used this formula
r^2 = (x+h^)2 + 3(y+k)^2
i just plug in the number but what do i do with the 3's outside of the parenthesis or i have to do something else...

Math(preCalculus) 
bobpursley
divide each side by 3 to get standard form.
Respond to this Question
Similar Questions

PreCalculus
I am having trouble with several problems: 1) Find the coordinates of the center, foci, and the vertices, and the equations of the asymptotes of the graph of the equation (x+1)^2/2  y^2/8 =1 2) Write the standard form of the equation … 
PreCalculus
I am having trouble with several problems: 1) Find the coordinates of the center, foci, and the vertices, and the equations of the asymptotes of the graph of the equation (x+1)^2/2  y^2/8 =1 2) Write the standard form of the equation … 
Precalculus
Write the standard form of the equation of the circle that is tangent to x= 2 and has its center at (2,4). Answer:(x2)^2+(y+4)^2=16 Is this correct? 
Math
The standard form of a circle is Ax^2+Cy^2+Dx+Ey+F=0. Write the equation for the circle: Center (1,2), point on the circle (2,1). Okay, I've always put circles in the form (xh)^2+(yk)^2=0. I got this: r^2=(x1)^2+(y2)^2 then I … 
Calculus
Complete the square to write the equation x^2 + y^2  6x  2y + 4 = 0 in standard form. Use the standard form of the equation to identify the center and the radius of the circle. 
pre calculus
Write the equation of the circle in standard form. Find the center, radius, intercepts, and graph the circle. x^2+y^212x4x+36=0 How on earth do I do this? 
Algerbra
Write the equation of the circle in standard form. Find the center, radius, intercepts, and graph the circle. x2+y2+16x−18y+145=25 Standard form (xh)^2 +(yk)^2 k 
PreCalculus
Not sure what to solve... I tried to solve it but i ended up proving that it worked. a. Find the equations of the tangents at C (2,1) and D (1,2) on the circle x^2+y^2=5 b. Find the point of intersection of the tangents. ~What I did … 
PreCalculus
Find the equation in standard form for the hyperbola that satisfies the given conditions: transverse axis has endpoints (5,3) and (7, 3) and conjugate axis has a length of 10. I found the distance of the transverse axis to be 12. … 
Precalculus
Find the center radius and equation of a circle in standard form given the following conditions: 1. Tangent to 3x+2y=0 at the point (0,0) and passing through (1,1) and (6,0)