Acircle with center (4 -3) contain the point (9,-3). what is an equation of the circle

Step-by-step explanation:

The equation of a circle:

(h, k) - center

r - radius

We have the center (4, -3) and the point on the circle (9, -3).

The length of radius is equal to the distance between a center and an any point on a circle.

The formula of a distance between two points:

Susbtitute:

The center (4, -3) → h = 4, k = -3.

Finally we have:

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