## Intermediate Algebra for College Students (7th Edition)

$x^2+y^2=64$
RECALL: The standard form of the equation of a circle centered at $(0, 0)$ with a radius of $r$ units is: $x^2 + y^2 = r^2$ Use the standard form above where $r=8$ to obtain: $x^2 + y^2 = 8^2 \\x^2+y^2=64$