Name: Date: Period: EQUATION OF A CIRCLE practice 4 1. What is the center and radius? (x-3)2 + (y+1)2 = 25 3. Write the equation of a circle with a center at (0,0) and a radius of 4. 5. Graph the circle. (x+2)2 + (y-1)2 = 4 7. Write the equation of the circle. ? 9. Is (2, 3) on the circle (x-1)2 + (y+4)2 =q? II. Write the equation of the circle. Center (O, O) Point (2, -4) 2. What is the center and radius? (x+19)2+ (y-2)2 = 1 4. Write the equation of a circle with a center at (-5, 7 ) and a radius of 10. 6. Graph the circle. x2 + y2 = 49 8. Write the equation of the circle ? 10. Is (-4, 5) on the circle (x+4)2 + (y+1)2 =36? 12. Write the equation of the circle. Center (1, 5) Point (-3, -7) @Lindsay Bowden, 2018