What is the equation of the circle with center (3.2,-2.1) and radius 4.3?

 The required equation of the circle is

Step-by-step explanation:  We are given to find the equation of the circle with center (3.2,-2.1) and radius 4.3.

We know that

the STANDARD equation of a circle with center (h, k) and radius r units is given by

For the given circle,

center, (h, k) = (3.2, -2.1)  and radius, r = 4.3 units.

So, from equation (i), we get

Thus, the required equation of the circle is

step-by-step explanation:

the answer is b.)

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