Answer
$C(0,0), r=7$,
See graph.
Domain $[-7,7]$ and Range $[-7,7]$ .
Work Step by Step
Step 1. Given the equation $x^2+y^2=49$, comparing with the standard equation for a circle, we can identify the center and radius of the circle as $C(0,0), r=7$
Step 2. Graph the equation as shown in the figure.
Step 3. Based on the graph, we can identify: Domain $[-7,7]$ and Range $[-7,7]$ .
