Question

What is the equation of a circle with center at (3,-4) and radius of 3

Answer 1

Answer:

$\displaystyle [x - 3]^2 + [y + 4]^2 = 9$

Explanation:

Accourding to one of the circle equations, $\displaystyle [x - h]^2 + [y - k]^2 = r^2,$the centre of the circle is represented by $\displaystyle [h, k].$Moreover, all negative symbols give you the OPPOCITE TERMS OF WHAT THEY REALLY ARE, so you must pay cloce attention to which term gets which symbol. Another thing you need to know is that the radius will ALWAYS be squared, so no matter how your equation comes about, make sure that the radius is squared.

I am joyous to assist you at any time.