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Mathematics 23 Online
OpenStudy (anonymous):

Conic section Help - What is the value of b for the following circle in general form? General Form is x^2+y^2+ax+by+c=0

OpenStudy (anonymous):

OpenStudy (anonymous):

sooo im not sure what to do ... right now im figuring the point and r

OpenStudy (anonymous):

sooooo r=3 and point=(1,-2)

OpenStudy (jdoe0001):

you're correct... so just plug that in :)

OpenStudy (anonymous):

ohh really thats it ! just a plug in equation wow @jdoe0001 thankss i though it was going to be like my other conic problems hahaha

OpenStudy (jdoe0001):

~~~ confetti ~~~ @meln_n ~~~ confetti ~~~

OpenStudy (anonymous):

hehehehehe n_n

OpenStudy (jdoe0001):

heehh no in this case :) \(\bf (x-h)^2+(y-k)^2=r^2\qquad r=3\qquad center\ (h,k)\to (1,-2) \\ \quad \\ (x-{\color{brown}{ 1}})^2+(y-({\color{brown}{ -2}}))^2={\color{brown}{ 3}}^2\) once you expand it, then you'd see what the non-squared "y" coefficient is :)

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