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- 1. Multiple Choice
What does (h,k) standard for in the standard circle equation?
(h,k) is the center of the circle
(h,k) is a point on the circle.
(h,k) is the radius of the circle
(h,k) is the diameter of the circle
- 2. Multiple Choice
What does "h" stand for in (h,k)?
h is the radius of the circle
h is the distance of the circle
h is the y coordinate of the center
h is the x coordinate of the center
- 3. Multiple Choice
What does the "k" in (h,k) stand for?
k is the y coordinate of the center
k is the x coordinate of the center
k is the radius of the circle
k is the distance of the circle
- 4. Multiple Choice
What does the r in the standard equation stand for?
r is the distance of the circle
r is the radius of the circle
r is the x coordinate of the center of the circle
r is the y coordinate of the center of the circle
- 5. Multiple ChoiceWrite the equation of a circle with center (7, 0) with radius 3.(x - 7)2 + y2 = 9x2 + (y -7)2 = 9(x - 7)2 + y2 = 3x2 + (y -7)2 = 3
- 6. Multiple ChoiceWhat are the coordinates of the center and the radius of the circle with equation:
(x - 4)2 + (y - 3)2 = 25 ?Center (4,3)
Radius = 5 unitsCenter (4,3)
Radius = 25 unitsCenter (-4,-3)
Radius = 25 unitsCenter (-4,-3)
Radius = 5 units - 7. Multiple Choice
What is the equation of the circle?(x+1)2 + (y +1)2 = 3(x+1)2 + (y -1)2 = 3(x+1)2 + (y +1)2 = 9(x-1)2 + (y -1)2 = 9 - 8. Multiple Choice
Write the equation of the circle with center C( -5 , 8 ) and radius = 7
( x - 5 )2 + ( y + 8 )2 = 14
( x - 5 )2 + ( y - 8 )2 = 49
( x - 5 )2 + ( y + 8 )2 = 49
( x + 5 )2 + ( y - 8 )2 = 49
- 9. Multiple Choice
What is the radius of the circle given by the equation (x - 7)2 + (y + 3)2 = 25?
3
5
10
25
- 10. Multiple Choice
What is the equation for this circle?
(x+1)2+(y+1)2=9
x2+y2=9
x2+y2=6
x2+y2=3
- 11. Multiple Choice
What is the equation for the circle graphed?
- 12. Multiple Choice
What is the equation for the circle graphed?
- 13. Multiple Choice
What is the equation of a circle with a center of (9, -2) and a diameter of 12
(x-9)² + (y+2)² = 144
(x+9)² + (y-2)² = 36
(x-9)² + (y+2)² = 36
(x+9)² + (y-2)² = 144
- 14. Multiple Choice
What is the equation of circle with a center of (0, -3) and a diameter of 8
x² + (y+3)² = 16
x² + (y-3)² = 16
x² + (y+3)² = 64
x² + (y-3)² = 64
- 15. Multiple Choice
Given the following equation (x+12)² + (y+3)² = 9, what is the diameter?
3
6
9
12
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