Show:
Multiplying Complex Numbers
Equations of a Circle given Radius and Center
Equation of Circle:Standard Form
Midpoint Formula
All of them
100

(−4i) 3

64i


100

Center: (−6, −15) Radius: 5

x + 6)2+ (y + 15)2 = 5

100

8x + x2 − 2y = 64 − y2

(x + 4)2  + (y − 1)2 = 81

100

(−4, 4), (5, −1)

( 1/ 2 , 1 1/ 2)

100

(2, 4), (1, −3)

(1 1/2 , 1/2)

200

(6i)(−4i)

24

200

Center: (−11, −8) Radius: 4

(x + 11)2+ (y + 8)2 = 16

200

 x2 +  y2 + 14x − 12y + 4 = 0

(x + 7)2 + (y − 6)2 = 81

200

(−4, 4), (−2, 2)

(−3, 3)

200

(3i)(−2 + 6i)

−18 − 6i

300

5(−i)(−4 + 6i)

30 + 20i

300

center is (1, 2) radius is 2

(x-1)2 +(y-2)2= 4

300

137 + 6y =  −y2 − x2 − 24x

(x + 12)2 + (y + 3)2 = 16

300

(−1, −6), (−6, 5)

(−3 1/2 , − 1/2)

300

(−1, 1), (5, −5)

(2, −2)

400

(7i)(6i)(−3 − 5i)

126 + 210i

400

The center is (-2, 0) and the radius is 2.

(x-(-2))2 +(y-0)2= 4

400

 y2 + 2x +  x2 = 24y − 120

(x + 1)2 + (y − 12)2 = 25

400

(5, 2), (−4, −3)

(1/2 ,-1/2)

400

(i)(6i)(4 + 6i)

−24 − 36i

500

(2 − 6i)(7 + 7i)(3 + 3i)

252 + 84i

500

Center is (5,-6) Radius 6

(x+5)2+(y-6)2=36

500

x2 + 2x +  y2 = 55 + 10y

(x + 1)2 + (y − 5)2 = 81

500

(2, −1), (−6, 0)

(−2, − 1/2)

500

Center is (4,-7) Radius 7

(x+4)2+(y-7)2=49