How do you write the equation of the circle with center at ( 5, -2) and diameter of 8?
The eqn. of circle is :
The equation of circle with center at
We have center
So ,the eqn. of circle is :
Recall that the equation of a circle is given by
We are centered at
We also know that we have a diameter of
We have all of the information we need, so we can now write the equation of this circle.
Hope this helps!