### Home > GC > Chapter 12 > Lesson 12.1.2 > Problem12-17

12-17.

On graph paper, graph the equations below. For each one, name the center and radius.

1. $x^2 + y^2 = 4.5^2$

The general equation for a circle with a center at the origin is $x^2 + y^2 = r^2$.

1. $x^2 + y^2 = 75$

$\sqrt{ 75 } \, \approx \, 8.66$