We are asked to match each graph with its equation. First, let's recall the standard equation of a circle with the center at point (h,k) and a radius of r.
(x-h)^2+(y-k)^2=r^2
Let's analyze each graph one at time.
Graph a.
First we will look at graph a and try to identify its center and radius.
Knowing that the center of the circle is ( -3, 0) and the radius is 2, we can write the equation.
