HELP PLEASE. FREE MEDAL.

Directrix and Asymptotes of...
(x+4)^2 + (y-2)^2 =9

Question

HELP PLEASE. FREE MEDAL.

Directrix and Asymptotes of...
(x+4)^2 + (y-2)^2 =9

mathmale · Answer

check for a sign error here.  The equation you've typed in is that of a circle with center (-4,2).  It does not have a directrix or any asymptotes.

anonymous · Answer

I got a C for saying that, but the teacher said it was and to bring it back on Monday for a better grade.

mathmale · Answer

Do you have the teacher's printed homework question?  We have to be 100% sure that we're starting with the correct equation.

anonymous · Answer

attachment

mathmale · Answer

Thank you for the screen shot.  Problem solved.  That list of "important features" is generic.  It does not mean that this particular equation represents a hyperbola, which would have asymptotes.    So, we ARE working with the equation of a circle.

What is the center of this circle?

What is the radius of this circle?

anonymous · Answer

I got that

mathmale · Answer

Next time, could you let me know when you're signing off?  I was waiting for your response.  A brief "thanks" would have been appreciated.