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2. If the diameter has endpoints at (6,-5) and (1,3), what must be the center of the circle?
A(3,-1)
H. (3,-2)
D (2-2)
3. The following are equations of circle, which has a center of (-4,7)?
A. (r + 4)+ (y + 7)- 9
8. (x+4)*+ (y-7) 9
C(
+4)(y 7) 9
D(x + 4)+(y-7)
1 Which equation of the circle has its center at the origin?
A. x² + (y - 3) = 6
B. (r + 8) + y - 25
C. (x + 1)'+ (y + 1)1
Dry 13
5. If the center is (11,6) and the radius is 4, which of the following is the equation of the circle?
A (x + 11)+(y - 6)- 16
B (r - 11) (y + 5)' - 16
C (1 + 11)++ (y = 6)} = 4
D. (x - 11) + ( + 6) = 4
6. What is the center of the circle x' .y 4x4 10y +13 - 0?
A (2,5)
B. (-2,5)
C. (2,-5)
D(-2,5)
7. In the equation x + y -100, What is the radius of the circle?
A 10 units
B. 5 units
C 10 units
D. 50 units
8. The radius of a circle is 8 units and its center is at (-3,8). What is the equation of the circle?
A (x+3)(y-8)=81
B (x-3) + (y+8)=9²
C. (x-3)(y-8)= -81
D. (x + 3) + (y+8)9²
9 The center of a circle is (2.4) and the radius is 5 units. What is the equation of the circle?
A (x + 2) + (y + 4) =5
B. (x-2) + (x+4) - 5(x2)(-4) 5²
D. (x-2)(y-457​

Sagot :

Answer:

1. C. (x-9)²+=36

2. A. (3,-1)

3. D. (x+4)²+(y-7)²=9

4. D. +=13

5. B. (x-11)²+(y+6)²=16

6. C. (2,-5)

7. C. 10 units

8. A. (x+3)²+(y-8)²=81

9. D. (x-2)²+(y-4)²=5²

10. A. center (-9,-5); radius 10 units